Предмет: Математика, автор: 9600641577

из города А а город В ,расстояниемеждукоторыми126 км, автомобиль доехал за 2 часа.За сколько часов это расстояние проедет автобус, если его скорость меньше скорости автомобиля на 21 км/ч?

Ответы

Автор ответа: ltdxeirb55

0

126/2=63 км/ч
63-21=42 км/ч - автобус
126/42=3 часа

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