Предмет: Математика, автор: Владислав2005111

Отец старше сына в 4 раза,а сумма из возрастов составляет 50 лет.Через сколько лет отец станет в трое старше сына?

Ответы

Автор ответа: Lizardunicorn

0

1 часть-х, тогда 4 - 4х
4х+х=50
5х=50
х=10
4×10=40
40+10=50
ответ:40,10 лет

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