Предмет: Математика, автор: Лиза1603

Решите Задачу.

Втрёх книжных шкафах 545 книг. В первом шкафу книг в 5 раз больше, чем во втором, а в третьем 143 книги. Сколько книг в первом шкафу?

Ответы

Автор ответа: Trololoeva
3

Пусть во 2 шкафу х книг,тогда в 1-ом 5х, в 3 143.

2х+х+143=545

3х=545-143

3х=402

х=134

Ответ: 134 книги в 1 шкафу))

Автор ответа: иера
4

Пусть Х книг во втором шкафу, тогда в первом 5Х

Х+5Х+143=545

6Х=545-143

6Х=402

Х=67-книг во втором шкафу

67*5=335-книг в первом шкафу 

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