Предмет: Математика, автор: меридианка

составь выражение для решения задачи. найди значение выражения при а равном 240 из поселка одновременно в противоположных направлениях выехали два мотоциклиста скорость первого 42 километров в час скорость второго 38 км в час через какое время расстояние между ними стало а км.

Ответы

Автор ответа: svetazavatzkay
0
1) сумма скоростей 42+ 38=80 км/ч  2)240:80=3 часа расстояние между ними   Ответ : 3 часа

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