Номер 22, страница 84, часть 2 - гдз по алгебре 10 класс учебник Пак, Ардакулы

Авторы: Пак О. В., Ардакулы Д., Ескендирова Е. В.

Тип: Учебник

Издательство: Алматыкітап баспасы

Год издания: 2019 - 2026

Часть: 2

ISBN: 978-601-01-3958-9

Рекомендовано Министерством образования и науки Республики Казахстан

Часть 2. Глава 6. Применение производной. Параграф 1. Признаки монотонности. Задачи - номер 22, страница 84.

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            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1149}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1147}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Branch {#1148
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119442
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Применение производной"
            "field_branch_order" => "6"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1153
              #items: array:1 [
                0 => App\Models\Term {#1150
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [
                    "id" => 29
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Глава"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Главу"
                      "field_creative_case" => "Главой"
                      "field_dative_case" => "Главе"
                      "field_genitive_case" => "Главы"
                      "field_nominative_case" => "Глава"
                      "field_prepositional_case" => "Главе"
                    ]
                    "field_page_check_not_needed" => null
                    "field_short_name" => null
                  ]
                  #original: array:7 [
                    "id" => 29
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Глава"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Главу"
                      "field_creative_case" => "Главой"
                      "field_dative_case" => "Главе"
                      "field_genitive_case" => "Главы"
                      "field_nominative_case" => "Глава"
                      "field_prepositional_case" => "Главе"
                    ]
                    "field_page_check_not_needed" => null
                    "field_short_name" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "76"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1152
              #items: array:1 [
                0 => App\Models\Book {#1119}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1151
              #items: array:1 [
                0 => App\Models\Branch {#1034}
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119442
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Применение производной"
            "field_branch_order" => "6"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1153}
            "field_page_start" => "76"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1152}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1151}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Branch {#1154
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119443
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Признаки монотонности"
            "field_branch_order" => "1"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1158
              #items: array:1 [
                0 => App\Models\Term {#1155
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Параграф"
                      "field_creative_case" => "Параграфом"
                      "field_dative_case" => "Параграфу"
                      "field_genitive_case" => "Параграфа"
                      "field_nominative_case" => "Параграф"
                      "field_prepositional_case" => "Параграфе"
                    ]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #original: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Параграф"
                      "field_creative_case" => "Параграфом"
                      "field_dative_case" => "Параграфу"
                      "field_genitive_case" => "Параграфа"
                      "field_nominative_case" => "Параграф"
                      "field_prepositional_case" => "Параграфе"
                    ]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "77"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1157
              #items: array:1 [
                0 => App\Models\Book {#1119}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1166
              #items: array:1 [
                0 => App\Models\Branch {#1165
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1119442
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Применение производной"
                    "field_branch_order" => "6"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1167
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_page_start" => "76"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1168
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1169
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                  ]
                  #original: array:24 [
                    "id" => 1119442
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Применение производной"
                    "field_branch_order" => "6"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1167}
                    "field_page_start" => "76"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1168}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1169}
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119443
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Признаки монотонности"
            "field_branch_order" => "1"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1158}
            "field_page_start" => "77"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1157}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1166}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        3 => App\Models\Branch {#1159
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119445
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Задачи"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1156
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "81"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1162
              #items: array:1 [
                0 => App\Models\Book {#1119}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1175
              #items: array:1 [
                0 => App\Models\Branch {#1174
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1119443
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Признаки монотонности"
                    "field_branch_order" => "1"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1176
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_page_start" => "77"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1178 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119443
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Признаки монотонности"
                    "field_branch_order" => "1"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1176}
                    "field_page_start" => "77"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1178 …2}
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119445
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Задачи"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1156}
            "field_page_start" => "81"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1162}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1175}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "content" => Illuminate\Database\Eloquent\Collection {#1070
      #items: array:2 [
        0 => App\Models\Element {#1097
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:7 [
            "id" => 1301022
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1087
              #items: array:1 [
                0 => App\Models\Edition {#1096
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:21 [
                    "id" => 4962
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1094 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1093 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1091 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1092 …2}
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                  #original: array:21 [
                    "id" => 4962
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1094 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
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                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "pasha"
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                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1093 …2}
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                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1091 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1092 …2}
                    "field_content_source" => null
                  ]
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              ]
              #escapeWhenCastingToString: false
            }
            "task" => array:2 [
              "refs" => "1120337"
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            "text" => "<p><strong>22. (3)</strong> Самолет летел сначала со скоростью $220 \text{ км/ч}$. Когда ему осталось лететь на $385 \text{ км}$ меньше, чем он пролетел, скорость его стала равной $330 \text{ км/ч}$. Средняя скорость самолета на всем пути $250 \text{ км/ч}$. Какое расстояние пролетел самолет?</p>"
            "img" => array:1 [
              0 => array:5 [
                "name" => "22-1.jpg"
                "alt" => null
                "width" => "1663"
                "height" => 291
                "path" => "/media/algebra_10/baspasy-u19/0-6-1zad/22-1.webp?ts=1753534893"
              ]
            ]
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          #original: array:7 [
            "id" => 1301022
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1087}
            "task" => array:2 [
              "refs" => "1120337"
              "type" => "task"
            ]
            "text" => "<p><strong>22. (3)</strong> Самолет летел сначала со скоростью $220 \text{ км/ч}$. Когда ему осталось лететь на $385 \text{ км}$ меньше, чем он пролетел, скорость его стала равной $330 \text{ км/ч}$. Средняя скорость самолета на всем пути $250 \text{ км/ч}$. Какое расстояние пролетел самолет?</p>"
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              0 => array:5 [
                "name" => "22-1.jpg"
                "alt" => null
                "width" => "1663"
                "height" => 291
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            "created_at" => "2026-04-10 13:58:26"
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2 (rus)"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1086 …2}
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                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1084 …2}
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                    "id" => 5659
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2 (rus)"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1086 …2}
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            "text" => "<p><strong>Решение</strong></p><p>Обозначим переменные:</p><ul> <li>$S_1$ — расстояние, которое самолет пролетел на первом участке пути (в км).</li> <li>$v_1$ — скорость самолета на первом участке пути, $v_1 = 220$ км/ч.</li> <li>$t_1$ — время полета на первом участке (в часах).</li> <li>$S_2$ — расстояние, которое самолету осталось лететь (в км).</li> <li>$v_2$ — скорость самолета на втором участке пути, $v_2 = 330$ км/ч.</li> <li>$t_2$ — время полета на втором участке (в часах).</li> <li>$S_{общ}$ — общее расстояние полета (в км).</li> <li>$v_{ср}$ — средняя скорость на всем пути, $v_{ср} = 250$ км/ч.</li></ul><p>По условию задачи, когда самолету осталось лететь на 385 км меньше, чем он пролетел, его скорость изменилась. Это означает, что расстояние второго участка ($S_2$) связано с расстоянием первого участка ($S_1$) следующим образом:</p><p>$S_2 = S_1 - 385$</p><p>Общее расстояние, которое пролетел самолет, равно сумме расстояний двух участков:</p><p>$S_{общ} = S_1 + S_2 = S_1 + (S_1 - 385) = 2S_1 - 385$</p><p>Время, затраченное на каждый участок, можно выразить через расстояние и скорость:</p><p>$t_1 = \frac{S_1}{v_1} = \frac{S_1}{220}$</p><p>$t_2 = \frac{S_2}{v_2} = \frac{S_1 - 385}{330}$</p><p>Средняя скорость вычисляется как отношение общего расстояния к общему времени:</p><p>$v_{ср} = \frac{S_{общ}}{t_1 + t_2}$</p><p>Подставим известные значения и выражения в формулу средней скорости:</p><p>$250 = \frac{2S_1 - 385}{\frac{S_1}{220} + \frac{S_1 - 385}{330}}$</p><p>Теперь решим это уравнение относительно $S_1$. Сначала приведем знаменатель дроби в правой части к общему знаменателю. Наименьшее общее кратное для 220 и 330 равно 660.</p><p>$\frac{S_1}{220} + \frac{S_1 - 385}{330} = \frac{3 \cdot S_1}{660} + \frac{2 \cdot (S_1 - 385)}{660} = \frac{3S_1 + 2S_1 - 770}{660} = \frac{5S_1 - 770}{660}$</p><p>Подставим упрощенный знаменатель обратно в уравнение:</p><p>$250 = \frac{2S_1 - 385}{\frac{5S_1 - 770}{660}}$</p><p>Избавимся от трехэтажной дроби:</p><p>$250 = \frac{660 \cdot (2S_1 - 385)}{5S_1 - 770}$</p><p>Умножим обе части на знаменатель $(5S_1 - 770)$:</p><p>$250 \cdot (5S_1 - 770) = 660 \cdot (2S_1 - 385)$</p><p>Разделим обе части уравнения на 10 для упрощения:</p><p>$25 \cdot (5S_1 - 770) = 66 \cdot (2S_1 - 385)$</p><p>Раскроем скобки:</p><p>$125S_1 - 19250 = 132S_1 - 25410$</p><p>Перенесем слагаемые с $S_1$ в одну сторону, а числовые значения в другую:</p><p>$25410 - 19250 = 132S_1 - 125S_1$</p><p>$6160 = 7S_1$</p><p>$S_1 = \frac{6160}{7} = 880$ км.</p><p>Мы нашли расстояние, которое самолет пролетел на первом участке. Теперь можем найти общее расстояние $S_{общ}$:</p><p>$S_{общ} = 2S_1 - 385 = 2 \cdot 880 - 385 = 1760 - 385 = 1375$ км.</p><p><strong>Ответ:</strong> 1375 км.</p>"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1081}
            "task" => array:2 [
              "refs" => "1120337"
              "type" => "task"
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            "text" => "<p><strong>Решение</strong></p><p>Обозначим переменные:</p><ul> <li>$S_1$ — расстояние, которое самолет пролетел на первом участке пути (в км).</li> <li>$v_1$ — скорость самолета на первом участке пути, $v_1 = 220$ км/ч.</li> <li>$t_1$ — время полета на первом участке (в часах).</li> <li>$S_2$ — расстояние, которое самолету осталось лететь (в км).</li> <li>$v_2$ — скорость самолета на втором участке пути, $v_2 = 330$ км/ч.</li> <li>$t_2$ — время полета на втором участке (в часах).</li> <li>$S_{общ}$ — общее расстояние полета (в км).</li> <li>$v_{ср}$ — средняя скорость на всем пути, $v_{ср} = 250$ км/ч.</li></ul><p>По условию задачи, когда самолету осталось лететь на 385 км меньше, чем он пролетел, его скорость изменилась. Это означает, что расстояние второго участка ($S_2$) связано с расстоянием первого участка ($S_1$) следующим образом:</p><p>$S_2 = S_1 - 385$</p><p>Общее расстояние, которое пролетел самолет, равно сумме расстояний двух участков:</p><p>$S_{общ} = S_1 + S_2 = S_1 + (S_1 - 385) = 2S_1 - 385$</p><p>Время, затраченное на каждый участок, можно выразить через расстояние и скорость:</p><p>$t_1 = \frac{S_1}{v_1} = \frac{S_1}{220}$</p><p>$t_2 = \frac{S_2}{v_2} = \frac{S_1 - 385}{330}$</p><p>Средняя скорость вычисляется как отношение общего расстояния к общему времени:</p><p>$v_{ср} = \frac{S_{общ}}{t_1 + t_2}$</p><p>Подставим известные значения и выражения в формулу средней скорости:</p><p>$250 = \frac{2S_1 - 385}{\frac{S_1}{220} + \frac{S_1 - 385}{330}}$</p><p>Теперь решим это уравнение относительно $S_1$. Сначала приведем знаменатель дроби в правой части к общему знаменателю. Наименьшее общее кратное для 220 и 330 равно 660.</p><p>$\frac{S_1}{220} + \frac{S_1 - 385}{330} = \frac{3 \cdot S_1}{660} + \frac{2 \cdot (S_1 - 385)}{660} = \frac{3S_1 + 2S_1 - 770}{660} = \frac{5S_1 - 770}{660}$</p><p>Подставим упрощенный знаменатель обратно в уравнение:</p><p>$250 = \frac{2S_1 - 385}{\frac{5S_1 - 770}{660}}$</p><p>Избавимся от трехэтажной дроби:</p><p>$250 = \frac{660 \cdot (2S_1 - 385)}{5S_1 - 770}$</p><p>Умножим обе части на знаменатель $(5S_1 - 770)$:</p><p>$250 \cdot (5S_1 - 770) = 660 \cdot (2S_1 - 385)$</p><p>Разделим обе части уравнения на 10 для упрощения:</p><p>$25 \cdot (5S_1 - 770) = 66 \cdot (2S_1 - 385)$</p><p>Раскроем скобки:</p><p>$125S_1 - 19250 = 132S_1 - 25410$</p><p>Перенесем слагаемые с $S_1$ в одну сторону, а числовые значения в другую:</p><p>$25410 - 19250 = 132S_1 - 125S_1$</p><p>$6160 = 7S_1$</p><p>$S_1 = \frac{6160}{7} = 880$ км.</p><p>Мы нашли расстояние, которое самолет пролетел на первом участке. Теперь можем найти общее расстояние $S_{общ}$:</p><p>$S_{общ} = 2S_1 - 385 = 2 \cdot 880 - 385 = 1760 - 385 = 1375$ км.</p><p><strong>Ответ:</strong> 1375 км.</p>"
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№22 (с. 84)
Условие. №22 (с. 84)
скриншот условия
Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019, Часть 2, страница 84, номер 22, Условие

22. (3) Самолет летел сначала со скоростью $220 \text{ км/ч}$. Когда ему осталось лететь на $385 \text{ км}$ меньше, чем он пролетел, скорость его стала равной $330 \text{ км/ч}$. Средняя скорость самолета на всем пути $250 \text{ км/ч}$. Какое расстояние пролетел самолет?

Решение 2 (rus). №22 (с. 84)

Решение

Обозначим переменные:

  • $S_1$ — расстояние, которое самолет пролетел на первом участке пути (в км).
  • $v_1$ — скорость самолета на первом участке пути, $v_1 = 220$ км/ч.
  • $t_1$ — время полета на первом участке (в часах).
  • $S_2$ — расстояние, которое самолету осталось лететь (в км).
  • $v_2$ — скорость самолета на втором участке пути, $v_2 = 330$ км/ч.
  • $t_2$ — время полета на втором участке (в часах).
  • $S_{общ}$ — общее расстояние полета (в км).
  • $v_{ср}$ — средняя скорость на всем пути, $v_{ср} = 250$ км/ч.

По условию задачи, когда самолету осталось лететь на 385 км меньше, чем он пролетел, его скорость изменилась. Это означает, что расстояние второго участка ($S_2$) связано с расстоянием первого участка ($S_1$) следующим образом:

$S_2 = S_1 - 385$

Общее расстояние, которое пролетел самолет, равно сумме расстояний двух участков:

$S_{общ} = S_1 + S_2 = S_1 + (S_1 - 385) = 2S_1 - 385$

Время, затраченное на каждый участок, можно выразить через расстояние и скорость:

$t_1 = \frac{S_1}{v_1} = \frac{S_1}{220}$

$t_2 = \frac{S_2}{v_2} = \frac{S_1 - 385}{330}$

Средняя скорость вычисляется как отношение общего расстояния к общему времени:

$v_{ср} = \frac{S_{общ}}{t_1 + t_2}$

Подставим известные значения и выражения в формулу средней скорости:

$250 = \frac{2S_1 - 385}{\frac{S_1}{220} + \frac{S_1 - 385}{330}}$

Теперь решим это уравнение относительно $S_1$. Сначала приведем знаменатель дроби в правой части к общему знаменателю. Наименьшее общее кратное для 220 и 330 равно 660.

$\frac{S_1}{220} + \frac{S_1 - 385}{330} = \frac{3 \cdot S_1}{660} + \frac{2 \cdot (S_1 - 385)}{660} = \frac{3S_1 + 2S_1 - 770}{660} = \frac{5S_1 - 770}{660}$

Подставим упрощенный знаменатель обратно в уравнение:

$250 = \frac{2S_1 - 385}{\frac{5S_1 - 770}{660}}$

Избавимся от трехэтажной дроби:

$250 = \frac{660 \cdot (2S_1 - 385)}{5S_1 - 770}$

Умножим обе части на знаменатель $(5S_1 - 770)$:

$250 \cdot (5S_1 - 770) = 660 \cdot (2S_1 - 385)$

Разделим обе части уравнения на 10 для упрощения:

$25 \cdot (5S_1 - 770) = 66 \cdot (2S_1 - 385)$

Раскроем скобки:

$125S_1 - 19250 = 132S_1 - 25410$

Перенесем слагаемые с $S_1$ в одну сторону, а числовые значения в другую:

$25410 - 19250 = 132S_1 - 125S_1$

$6160 = 7S_1$

$S_1 = \frac{6160}{7} = 880$ км.

Мы нашли расстояние, которое самолет пролетел на первом участке. Теперь можем найти общее расстояние $S_{общ}$:

$S_{общ} = 2S_1 - 385 = 2 \cdot 880 - 385 = 1760 - 385 = 1375$ км.

Ответ: 1375 км.

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