Предмет: Математика, автор: garifollaajkun

Туристы в первый день ехали со скоростью 60 км/ч-4 ч, а во второй день- несколько часов со скоростью 70 км/ч.Всего они проехали 870 км. Сколько часов туристы ехали во второй день
ю

Ответы

Автор ответа: serhan61

Ответ:

Пусть х-время в пути во второй день, тогда

70*5+65*х=870

65х=870-350

65х=520

х=8

Ответ:8 часов

Пошаговое объяснение:

Автор ответа: oksanja11

Ответ:

1) 60×4=240 км - проехали в 1 день

2)870-240=630 км - проехали в 2 день

3)630÷70=9 ч - туристы ехали во второй день

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