Предмет: Математика, автор: georgecherepanov

На другій полиці книжок у 5 разів більше, ніж на першій, на скільки книжок менше на першій полиці, якщо всього на двох полицях 42книги? Срочно 40 баллов

Ответы

Автор ответа: сок111213

1 полка - х (к)

2 полка - 5х (к)

всего - 42 (к)

х + 5х = 42

6х = 42

х = 42 ÷ 6

х = 7 (к) - на 1 полке

5х = 5 × 7 = 35 (к) - на 2 полке

35 - 7 = 28 (к)

Ответ: на первой полке на 28 книг меньше, чем на второй

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