Предмет: Математика, автор: vipbagirova

задача длина туристического маршрута равна 400км.турист ехал 3ч поездом соскоростью а км/ч и 2ч автобусом со скоростью ,равной 2/3 дробью скрости поезда.за сколько часов он пройдет остаток пути идя со скоростью 5км/ч?вычислите время затраченное туристом на весь маршрут если а равно 75 помогите с решением

Ответы

Автор ответа: qpKOKCqp

75*3=225
400-225=175
2/3*75=50
50*2=100
175-100=75
75/5=25
Ответ: 25 часов

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