Предмет: Математика, автор: kissa222

машина прошла за 1-ый час 70км,за 2-ой 50км,за 3-ий 90км. Найди среднюю скорость машины.

Ответы

Автор ответа: Marik20015

1

50+60+70= 180
180:3= 60 км/ч - средняя скорость
источник голова)

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