Предмет: Алгебра, автор: лол296

пассажирский поезд за 4часа прошел такое расстояние, какое товарный поезд за 6часов. Найдите скорость пассажирского поезжа, если известно, что скорость товарного на 20км ч меньше

Ответы

Автор ответа: Guppy2016

скорость пассажирского
Х+20
скорость товарного
Х
______________
4(х+20)=6х
4х+80=6х
2х=80
х=40 товарный
20+40=60 пассажирский

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