Предмет: Алгебра, автор: ddurdona

Первую треть пути автомобиль проехал со скоростью 40 км/ч, а оставшуюся часть пути- со скоростью 70 км/ч. Найти среднюю скорость автомобиля за всё время движения.

Ответы

Автор ответа: Iiuha500000

Ответ:

60 км ч

Объяснение:

представим весь путь как 3 части на первой части он ехал со скоростью 40 на второй и третьей 70. чтобы найти среднюю скорость складываем 40+70+70=180 затем делим на 3, 180/3=60

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