Номер 459, страница 133 - гдз по алгебре 9 класс учебник Солтан, Солтан

Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019

Авторы: Солтан Г. Н., Солтан А. Е., Жумадилова А. Ж.

Тип: Учебник

Издательство: Кокшетау

Год издания: 2019 - 2026

ISBN: 978-601-317-424-2

Рекомендовано Министерством образования и науки Республики Казахстан

III. Последовательности. 18. Сумма n первых членов геометрической прогрессии - номер 459, страница 133.

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            "text" => "<p><strong>459.</strong> По легенде индийский царь позволил изобретателю игры в шахматы самому себе назначить награду. Тот просил, чтобы дали ему зерен пшеницы: за первую клетку – одно зерно, за вторую – два зерна и так далее до последней 64-й клетки за каждую последующую в 2 раза больше, чем за предыдущую.</p><p><strong>а)</strong> Сколько зерен пшеницы просил он? Как прочитать это число?</p><p><strong>б)</strong> Найдите примерный вес этого зерна в тоннах, если вес одного зерна $ \approx 0.065 \text{ грамма}$.</p>"
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            "text" => "<p><strong>а) Сколько зерен пшеницы просил он? Как прочитать это число?</strong></p><p>Количество зерен на каждой клетке шахматной доски образует геометрическую прогрессию. Первый член этой прогрессии $b_1 = 1$ (зерно на первой клетке), знаменатель прогрессии $q = 2$ (количество зерен удваивается на каждой следующей клетке), а количество членов прогрессии $n = 64$ (по числу клеток на доске).</p><p>Чтобы найти общее количество зерен, нужно вычислить сумму первых 64 членов этой прогрессии. Формула суммы $n$ членов геометрической прогрессии:</p><p>$S_n = \frac{b_1(q^n - 1)}{q - 1}$</p><p>Подставим наши значения для $n=64$:</p><p>$S_{64} = \frac{1 \cdot (2^{64} - 1)}{2 - 1} = 2^{64} - 1$</p><p>Сначала вычислим степень $2^{64}$:</p><p>$2^{64} = 18\,446\,744\,073\,709\,551\,616$</p><p>Теперь вычтем единицу, чтобы найти общее количество зерен:</p><p>$S_{64} = 18\,446\,744\,073\,709\,551\,616 - 1 = 18\,446\,744\,073\,709\,551\,615$</p><p>Это число читается как: восемнадцать квинтиллионов четыреста сорок шесть квадриллионов семьсот сорок четыре триллиона семьдесят три миллиарда семьсот девять миллионов пятьсот пятьдесят одна тысяча шестьсот пятнадцать.</p><p><strong>Ответ:</strong> Изобретатель попросил $18\,446\,744\,073\,709\,551\,615$ зерен пшеницы. Это число читается как восемнадцать квинтиллионов четыреста сорок шесть квадриллионов семьсот сорок четыре триллиона семьдесят три миллиарда семьсот девять миллионов пятьсот пятьдесят одна тысяча шестьсот пятнадцать.</p><p><strong>б) Найдите примерный вес этого зерна в тоннах, если вес одного зерна ≈ 0,065 грамма.</strong></p><p>Чтобы найти общий вес зерна, умножим их количество на вес одного зерна. Вес одного зерна по условию равен примерно $0,065$ грамма.</p><p>Общий вес в граммах ($M_г$) составляет:</p><p>$M_г = 18\,446\,744\,073\,709\,551\,615 \times 0.065 \text{ г} \approx 1\,199\,038\,364\,791\,120\,855 \text{ г}$</p><p>Для упрощения дальнейших расчетов будем использовать приближенное значение, выраженное в научной нотации. Общее число зерен примерно равно $1.845 \times 10^{19}$.</p><p>$M_г \approx 1.845 \times 10^{19} \times 0.065 \text{ г} \approx 1.2 \times 10^{18} \text{ г}$</p><p>Теперь переведем вес из граммов в тонны. В одной тонне $1\,000$ килограммов, а в одном килограмме $1\,000$ граммов, следовательно:</p><p>$1 \text{ тонна} = 1\,000 \times 1\,000 = 1\,000\,000 \text{ граммов} = 10^6 \text{ г}$</p><p>Разделим общий вес в граммах на количество граммов в одной тонне, чтобы найти вес в тоннах ($M_т$):</p><p>$M_т \approx \frac{1.2 \times 10^{18} \text{ г}}{10^6 \text{ г/т}} = 1.2 \times 10^{12} \text{ т}$</p><p>Это значение равно $1\,200$ миллиардам тонн, или $1,2$ триллиона тонн.</p><p><strong>Ответ:</strong> Примерный вес зерна составляет $1,2 \times 10^{12}$ тонн (один триллион двести миллиардов тонн).</p>"
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            "text" => "<p><strong>а) Сколько зерен пшеницы просил он? Как прочитать это число?</strong></p><p>Количество зерен на каждой клетке шахматной доски образует геометрическую прогрессию. Первый член этой прогрессии $b_1 = 1$ (зерно на первой клетке), знаменатель прогрессии $q = 2$ (количество зерен удваивается на каждой следующей клетке), а количество членов прогрессии $n = 64$ (по числу клеток на доске).</p><p>Чтобы найти общее количество зерен, нужно вычислить сумму первых 64 членов этой прогрессии. Формула суммы $n$ членов геометрической прогрессии:</p><p>$S_n = \frac{b_1(q^n - 1)}{q - 1}$</p><p>Подставим наши значения для $n=64$:</p><p>$S_{64} = \frac{1 \cdot (2^{64} - 1)}{2 - 1} = 2^{64} - 1$</p><p>Сначала вычислим степень $2^{64}$:</p><p>$2^{64} = 18\,446\,744\,073\,709\,551\,616$</p><p>Теперь вычтем единицу, чтобы найти общее количество зерен:</p><p>$S_{64} = 18\,446\,744\,073\,709\,551\,616 - 1 = 18\,446\,744\,073\,709\,551\,615$</p><p>Это число читается как: восемнадцать квинтиллионов четыреста сорок шесть квадриллионов семьсот сорок четыре триллиона семьдесят три миллиарда семьсот девять миллионов пятьсот пятьдесят одна тысяча шестьсот пятнадцать.</p><p><strong>Ответ:</strong> Изобретатель попросил $18\,446\,744\,073\,709\,551\,615$ зерен пшеницы. Это число читается как восемнадцать квинтиллионов четыреста сорок шесть квадриллионов семьсот сорок четыре триллиона семьдесят три миллиарда семьсот девять миллионов пятьсот пятьдесят одна тысяча шестьсот пятнадцать.</p><p><strong>б) Найдите примерный вес этого зерна в тоннах, если вес одного зерна ≈ 0,065 грамма.</strong></p><p>Чтобы найти общий вес зерна, умножим их количество на вес одного зерна. Вес одного зерна по условию равен примерно $0,065$ грамма.</p><p>Общий вес в граммах ($M_г$) составляет:</p><p>$M_г = 18\,446\,744\,073\,709\,551\,615 \times 0.065 \text{ г} \approx 1\,199\,038\,364\,791\,120\,855 \text{ г}$</p><p>Для упрощения дальнейших расчетов будем использовать приближенное значение, выраженное в научной нотации. Общее число зерен примерно равно $1.845 \times 10^{19}$.</p><p>$M_г \approx 1.845 \times 10^{19} \times 0.065 \text{ г} \approx 1.2 \times 10^{18} \text{ г}$</p><p>Теперь переведем вес из граммов в тонны. В одной тонне $1\,000$ килограммов, а в одном килограмме $1\,000$ граммов, следовательно:</p><p>$1 \text{ тонна} = 1\,000 \times 1\,000 = 1\,000\,000 \text{ граммов} = 10^6 \text{ г}$</p><p>Разделим общий вес в граммах на количество граммов в одной тонне, чтобы найти вес в тоннах ($M_т$):</p><p>$M_т \approx \frac{1.2 \times 10^{18} \text{ г}}{10^6 \text{ г/т}} = 1.2 \times 10^{12} \text{ т}$</p><p>Это значение равно $1\,200$ миллиардам тонн, или $1,2$ триллиона тонн.</p><p><strong>Ответ:</strong> Примерный вес зерна составляет $1,2 \times 10^{12}$ тонн (один триллион двести миллиардов тонн).</p>"
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                    0 => "*"
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                2 => App\Models\Term {#1147
                  #connection: "mysql"
                  #table: "terms"
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                  #keyType: "int"
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                  #withCount: []
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_name" => "Аманбала"
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                  ]
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                    0 => "*"
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              ]
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            }
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1154
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            }
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                0 => App\Models\Term {#1152
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_cases" => array:6 [ …6]
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                }
              ]
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            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1150
              #items: array:1 [
                0 => App\Models\Term {#1153
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                    "id" => 6994
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Казахстан"
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                    "field_translit" => "kazakhstan"
                  ]
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_translit" => "kazakhstan"
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              ]
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            "field_city" => Illuminate\Database\Eloquent\Collection {#1151
              #items: array:1 [
                0 => App\Models\Term {#1181
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #attributes: array:6 [
                    "id" => 6995
                    "created_at" => "2026-04-10 13:58:26"
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                    "field_translit" => "almaty"
                  ]
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_translit" => "almaty"
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              ]
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            "field_series" => Illuminate\Database\Eloquent\Collection {#1182
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1184
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1185
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1186
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => null
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              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1188
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
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            "field_part" => ""
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            "field_for_whom" => "Учебник для учащихся 9 класса общеобразовательных школ"
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            "field_tasks_count" => "1291"
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            "field_cover" => array:1 [
              0 => "/media/algebra_09/soltan-u19/covers/cover1.webp?ts=1752140452"
            ]
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              ]
            ]
            "field_popular_book" => null
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              #escapeWhenCastingToString: false
            }
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            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1191
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            }
            "field_url" => "/9-klass/algebra/kokshetau-soltan-uchebnik"
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            "field_for_whom" => "Учебник для учащихся 9 класса общеобразовательных школ"
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        }
      ]
      #escapeWhenCastingToString: false
    }
    "page" => Illuminate\Database\Eloquent\Collection {#1200
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        0 => App\Models\BookPage {#1199
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          #keyType: "int"
          +incrementing: true
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          #attributes: array:21 [
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            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
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            "field_display_title" => "133"
            "field_folder" => "folder1"
            "field_image_name" => "133"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1201
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              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1202
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              ]
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              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1213
              #items: array:1 [
                0 => App\Models\Element {#1212
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
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                  #attributes: array:6 [
                    "id" => 1261026
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#1214 …2}
                    "book_page" => array:2 [ …2]
                    "img" => array:1 [ …1]
                  ]
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#1214 …2}
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                  ]
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                    0 => "*"
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1097876"
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            ]
            "previous" => array:2 [
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            "tasks" => Illuminate\Database\Eloquent\Collection {#1369
              #items: array:7 [
                0 => App\Models\Task {#1383
                  #connection: "mysql"
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                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
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                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1108184
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "133"
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                    "field_url" => "/9-klass/algebra/kokshetau-soltan-uchebnik/1-457"
                    "field_display_title" => "457"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1384 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1385 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1386 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1387 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1390 …2}
                    "next" => array:2 [ …2]
                    "previous" => array:2 [ …2]
                    "book" => Illuminate\Database\Eloquent\Collection {#1396 …2}
                    "page" => array:2 [ …2]
                  ]
                  #original: array:24 [
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "133"
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                    "field_url" => "/9-klass/algebra/kokshetau-soltan-uchebnik/1-457"
                    "field_display_title" => "457"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1384 …2}
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                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1385 …2}
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1387 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1390 …2}
                    "next" => array:2 [ …2]
                    "previous" => array:2 [ …2]
                    "book" => Illuminate\Database\Eloquent\Collection {#1396 …2}
                    "page" => array:2 [ …2]
                  ]
                  #changes: []
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                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                1 => App\Models\Task {#1389
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1108185
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "133"
                    "field_page_end" => null
                    "field_url" => "/9-klass/algebra/kokshetau-soltan-uchebnik/1-458"
                    "field_display_title" => "458"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1388 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
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                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1395 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1397 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1393 …2}
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№459 (с. 133)
Условие. №459 (с. 133)
скриншот условия
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 133, номер 459, Условие

459. По легенде индийский царь позволил изобретателю игры в шахматы самому себе назначить награду. Тот просил, чтобы дали ему зерен пшеницы: за первую клетку – одно зерно, за вторую – два зерна и так далее до последней 64-й клетки за каждую последующую в 2 раза больше, чем за предыдущую.

а) Сколько зерен пшеницы просил он? Как прочитать это число?

б) Найдите примерный вес этого зерна в тоннах, если вес одного зерна $ \approx 0.065 \text{ грамма}$.

Решение. №459 (с. 133)
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 133, номер 459, Решение
Решение 2 (rus). №459 (с. 133)

а) Сколько зерен пшеницы просил он? Как прочитать это число?

Количество зерен на каждой клетке шахматной доски образует геометрическую прогрессию. Первый член этой прогрессии $b_1 = 1$ (зерно на первой клетке), знаменатель прогрессии $q = 2$ (количество зерен удваивается на каждой следующей клетке), а количество членов прогрессии $n = 64$ (по числу клеток на доске).

Чтобы найти общее количество зерен, нужно вычислить сумму первых 64 членов этой прогрессии. Формула суммы $n$ членов геометрической прогрессии:

$S_n = \frac{b_1(q^n - 1)}{q - 1}$

Подставим наши значения для $n=64$:

$S_{64} = \frac{1 \cdot (2^{64} - 1)}{2 - 1} = 2^{64} - 1$

Сначала вычислим степень $2^{64}$:

$2^{64} = 18\,446\,744\,073\,709\,551\,616$

Теперь вычтем единицу, чтобы найти общее количество зерен:

$S_{64} = 18\,446\,744\,073\,709\,551\,616 - 1 = 18\,446\,744\,073\,709\,551\,615$

Это число читается как: восемнадцать квинтиллионов четыреста сорок шесть квадриллионов семьсот сорок четыре триллиона семьдесят три миллиарда семьсот девять миллионов пятьсот пятьдесят одна тысяча шестьсот пятнадцать.

Ответ: Изобретатель попросил $18\,446\,744\,073\,709\,551\,615$ зерен пшеницы. Это число читается как восемнадцать квинтиллионов четыреста сорок шесть квадриллионов семьсот сорок четыре триллиона семьдесят три миллиарда семьсот девять миллионов пятьсот пятьдесят одна тысяча шестьсот пятнадцать.

б) Найдите примерный вес этого зерна в тоннах, если вес одного зерна ≈ 0,065 грамма.

Чтобы найти общий вес зерна, умножим их количество на вес одного зерна. Вес одного зерна по условию равен примерно $0,065$ грамма.

Общий вес в граммах ($M_г$) составляет:

$M_г = 18\,446\,744\,073\,709\,551\,615 \times 0.065 \text{ г} \approx 1\,199\,038\,364\,791\,120\,855 \text{ г}$

Для упрощения дальнейших расчетов будем использовать приближенное значение, выраженное в научной нотации. Общее число зерен примерно равно $1.845 \times 10^{19}$.

$M_г \approx 1.845 \times 10^{19} \times 0.065 \text{ г} \approx 1.2 \times 10^{18} \text{ г}$

Теперь переведем вес из граммов в тонны. В одной тонне $1\,000$ килограммов, а в одном килограмме $1\,000$ граммов, следовательно:

$1 \text{ тонна} = 1\,000 \times 1\,000 = 1\,000\,000 \text{ граммов} = 10^6 \text{ г}$

Разделим общий вес в граммах на количество граммов в одной тонне, чтобы найти вес в тоннах ($M_т$):

$M_т \approx \frac{1.2 \times 10^{18} \text{ г}}{10^6 \text{ г/т}} = 1.2 \times 10^{12} \text{ т}$

Это значение равно $1\,200$ миллиардам тонн, или $1,2$ триллиона тонн.

Ответ: Примерный вес зерна составляет $1,2 \times 10^{12}$ тонн (один триллион двести миллиардов тонн).

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Мы подготовили для вас ответ c подробным объяснением домашего задания по алгебре за 9 класс, для упражнения номер 459 расположенного на странице 133 к учебнику 2019 года издания для учащихся школ и гимназий.

Теперь на нашем сайте ГДЗ.ТОП вы всегда легко и бесплатно найдёте условие с правильным ответом на вопрос «Как решить ДЗ» и «Как сделать» задание по алгебре к упражнению №459 (с. 133), авторов: Солтан (Генадий Николаевич), Солтан (Алла Евгеньевна), Жумадилова (Аманбала Жумадиловна), учебного пособия издательства Кокшетау.