Предмет: Алгебра, автор: shatikira

Над выполнено км заказа ученик работал 8 часов, а мастер выполнил такой же заказ за 6 часов. Сколько деталей составляет заказ, если мастер и ученик за один час вместе изготавливают 7 деталей?

Ответы

Автор ответа: Аноним

0

Пусть мастер за час изготовил Х деталей, тогда ученик сделал 7 - Х
Зная, что мастер за 6 часов сделает 6Х деталей, а ученик за 8 часов - 8 * (7 - Х) деталей,составим и решим уравнение:
6Х = 8 * (7 - Х)
6Х = 56 - 8Х
14Х = 56
Х = 56 : 14
Х = 4
Значит, мастер сделал 4 деталей, тогда ученик сделал: 6 * 4 = 24 деталей.

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