Номер 206, страница 67 - 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

II. Элементы комбинаторики. 7. Основные понятия и правила комбинаторики - номер 206, страница 67.

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                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1095 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#1096 …2}
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    "content" => Illuminate\Database\Eloquent\Collection {#1098
      #items: array:3 [
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            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1100
              #items: array:1 [
                0 => App\Models\Edition {#1101
                  #connection: "mysql"
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                  #attributes: array:21 [
                    "id" => 4953
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1102 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
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                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "pasha"
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                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1104 …2}
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                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1105 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1106 …2}
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                  ]
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                    "id" => 4953
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
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                    "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 {#1104 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1105 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1106 …2}
                    "field_content_source" => null
                  ]
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                    0 => "*"
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              ]
              #escapeWhenCastingToString: false
            }
            "task" => array:2 [
              "refs" => "1107909"
              "type" => "task"
            ]
            "text" => "<p><strong>206.</strong> Зритель может занять одно из пяти свободных мест в первом ряду зала или одно из трех свободных мест в последнем ряду. Сколько у него вариантов выбора места в зрительном зале?</p>"
            "img" => array:1 [
              0 => array:5 [
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                "width" => "1565"
                "height" => 266
                "path" => "/media/algebra_09/soltan-u19/0-1/206-1.webp?ts=1752834264"
              ]
            ]
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            "id" => 1276561
            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1100}
            "task" => array:2 [
              "refs" => "1107909"
              "type" => "task"
            ]
            "text" => "<p><strong>206.</strong> Зритель может занять одно из пяти свободных мест в первом ряду зала или одно из трех свободных мест в последнем ряду. Сколько у него вариантов выбора места в зрительном зале?</p>"
            "img" => array:1 [
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                "width" => "1565"
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                "path" => "/media/algebra_09/soltan-u19/0-1/206-1.webp?ts=1752834264"
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            0 => "*"
          ]
        }
        1 => App\Models\Element {#1107
          #connection: "mysql"
          #table: "elements"
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          #keyType: "int"
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          #attributes: array:6 [
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            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1108
              #items: array:1 [
                0 => App\Models\Edition {#1109
                  #connection: "mysql"
                  #table: "editions"
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                  #keyType: "int"
                  +incrementing: false
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                  #attributes: array:21 [
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                    "created_at" => "2026-04-10 13:58:26"
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                    "title" => "Решение"
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1110 …2}
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                    "title" => "Решение"
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                    "field_content_mode" => "image"
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                    "field_content_text_checked" => "0"
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Неизвестный"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "1-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1112 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1113 …2}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1114 …2}
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                  #guarded: array:1 [
                    0 => "*"
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              #escapeWhenCastingToString: false
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            "task" => array:2 [
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                "width" => "761"
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                "path" => "/media/algebra_09/soltan-u19/1-1/206-1.webp?ts=1752830955"
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            "id" => 1277852
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1108}
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              "refs" => "1107909"
              "type" => "task"
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              0 => array:5 [
                "name" => "206-1.jpg"
                "alt" => null
                "width" => "761"
                "height" => 400
                "path" => "/media/algebra_09/soltan-u19/1-1/206-1.webp?ts=1752830955"
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        2 => App\Models\Element {#1115
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            "id" => 1553807
            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1116
              #items: array:1 [
                0 => App\Models\Edition {#1117
                  #connection: "mysql"
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                  #attributes: array:21 [
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2 (rus)"
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                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "tolik"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
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                    "id" => 5665
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2 (rus)"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1118 …2}
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                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "tolik"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1120 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1121 …2}
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                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1122 …2}
                    "field_content_source" => null
                  ]
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            "task" => array:2 [
              "refs" => "1107909"
              "type" => "task"
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            "text" => "<p>Для решения этой задачи используется правило суммы в комбинаторике. Зритель может выбрать место в первом ряду ИЛИ в последнем ряду. Эти события являются взаимоисключающими, поскольку зритель не может одновременно занять место в двух разных рядах.</p><p>Количество способов выбрать место в первом ряду равно количеству свободных мест в этом ряду, то есть 5.</p><p>Количество способов выбрать место в последнем ряду равно количеству свободных мест в этом ряду, то есть 3.</p><p>Чтобы найти общее количество вариантов выбора, нужно сложить количество вариантов для каждого ряда. Пусть $N$ — общее количество вариантов.</p><p>$N = 5 + 3 = 8$</p><p>Таким образом, у зрителя есть 8 различных вариантов, чтобы занять место в зале.</p><p><strong>Ответ:</strong> 8</p>"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1116}
            "task" => array:2 [
              "refs" => "1107909"
              "type" => "task"
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            "text" => "<p>Для решения этой задачи используется правило суммы в комбинаторике. Зритель может выбрать место в первом ряду ИЛИ в последнем ряду. Эти события являются взаимоисключающими, поскольку зритель не может одновременно занять место в двух разных рядах.</p><p>Количество способов выбрать место в первом ряду равно количеству свободных мест в этом ряду, то есть 5.</p><p>Количество способов выбрать место в последнем ряду равно количеству свободных мест в этом ряду, то есть 3.</p><p>Чтобы найти общее количество вариантов выбора, нужно сложить количество вариантов для каждого ряда. Пусть $N$ — общее количество вариантов.</p><p>$N = 5 + 3 = 8$</p><p>Таким образом, у зрителя есть 8 различных вариантов, чтобы занять место в зале.</p><p><strong>Ответ:</strong> 8</p>"
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№206 (с. 67)
Условие. №206 (с. 67)
скриншот условия
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 67, номер 206, Условие

206. Зритель может занять одно из пяти свободных мест в первом ряду зала или одно из трех свободных мест в последнем ряду. Сколько у него вариантов выбора места в зрительном зале?

Решение. №206 (с. 67)
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 67, номер 206, Решение
Решение 2 (rus). №206 (с. 67)

Для решения этой задачи используется правило суммы в комбинаторике. Зритель может выбрать место в первом ряду ИЛИ в последнем ряду. Эти события являются взаимоисключающими, поскольку зритель не может одновременно занять место в двух разных рядах.

Количество способов выбрать место в первом ряду равно количеству свободных мест в этом ряду, то есть 5.

Количество способов выбрать место в последнем ряду равно количеству свободных мест в этом ряду, то есть 3.

Чтобы найти общее количество вариантов выбора, нужно сложить количество вариантов для каждого ряда. Пусть $N$ — общее количество вариантов.

$N = 5 + 3 = 8$

Таким образом, у зрителя есть 8 различных вариантов, чтобы занять место в зале.

Ответ: 8

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