Предмет: Алгебра, автор: arinacapala

першому ящику було в 3 рази більше груш, ніж в іншому, тому він узяв 4 кг груш з першого ящика і додав 2 кг у другий, в обох ящиках було стільки ж груш, скільки кг груш було в початок у кожному ящику

Ответы

Автор ответа: T1Key
1

Ответ:

В першому ящику було 9 кг груш, а в другому 3 кг груш.

Объяснение:

Нехай в першому ящику було x кг груш, а в другому y кг груш. Тоді x = 3y.

Після того, як взяли 4 кг груш з першого ящика, там залишилося x - 4 кг груш. Після того, як додали 2 кг груш у другий ящик, там стало y + 2 кг груш.

За умовою, x - 4 = y + 2.

Підставивши значення x = 3y, отримаємо:

3y - 4 = y + 2

2y = 6

y = 3

x = 3 * 3 = 9

Отже, в першому ящику було 9 кг груш, а в другому 3 кг груш.

Перевірка:

(9 - 4) = (3 + 2)

5 = 5

Рівність виконується, отже, відповідь правильна.

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