Предмет: Математика, автор: точкак

Первые 1,2 ч автобус ехал со скоростью 60 км/ч, а затем 2,8 ч -со скоростью 80 км/ч.
Найти среднюю скорость автобуса.

Ответы

Автор ответа: Тимоха009
0
(80 км/ ч + 60 км/ ч) / 2 = 70 км/ч
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