Предмет: Математика, автор: LenysikPysik01

Из двух сел между которыми растояние 12 км одновременно вышли в противоположные стороны два пешехода. Скорость одного 4 км/ч, а другого - 5 км/ч. На каком расстоянии друг от друга они будут через 3 часа?

Ответы

Автор ответа: pyffik

1) 4 + 5 =9 (км /ч ) - скорость удаления

2) 9 * 3 =27 ( км ) - расстояние за 3 ч

3) 12 +27 =39 (км) -расстояние через 3 ч

Ответ : на расстоянии 39 км они будут через 3 ч.

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