Предмет: Математика, автор: катя1671

Андрей едет на велосипеде со скоростью 200 метров в минуту Сергей идет ему навстречу со скоростью 80 метров в минуту через сколько минут они встретятся если сейчас расстояние между ними 1 километр 400 метров

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Автор ответа: kravchukoksank

в 1 км 1000 метров,то есть Андрей едит на велеке 200 метров в минуту ,значит мы 1400 метров делим на 200 метров и получаем 7 минут.. они встретяться за 7 минут

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