Предмет: Математика, автор: Padre9987

Пассажирский поезд был задержан в пути на 16 мин и нагнал опоздание на перегоне в 80 км идя со скоростью на 10 км/ч больше, чем пологалось по расписанию . Какова была скорость поезда по расписанию?

Ответы

Автор ответа: Alina8513
1
Пусть х -скорость поезда по расписаниюх+10 - скорость на перегоне16 мин = 4/15 часаСоставим уравнение(уравнение на фото)Скорость не отрицательная величина, значит скорость поезда по расписанию была 50 км/чОтвет:50 км/ч
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