Предмет: Математика, автор: алешечка

два поезда должны пройти с одинаковой скоростью - один 800 км ,второй 320 км ,причём первый должен пройти быть в пути на 12 часов больше второго .Сколько времени будет в пути каждый поезд?

Ответы

Автор ответа: milaniashevchuk

800-320=480 км разность в растоянии

480/12=40 км/ч скорость поездов

800/40=20ч 1 поезд в пути

320/40=8 ч 2 поезд в пути

Автор ответа: Аноним

1)800-320=480км-разница.

2)480:12=40км/ч-скорость поездов.

3)800:40=20ч-будет в пути первый.

4)320:40=8ч-будет в пути второй. Вот я так думаю

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