Предмет: Алгебра, автор: aiperiwaa

Поезд проехал третью часть расстояния между городами со скоростью 40км/ч , а оставшиеся путь со скоростью 60 км/ч . Поездка заняла 7 часов . Найти расстояние между городами

Ответы

Автор ответа: AlenaAlenovna

2

1) (40 + 60) : 2 = 50 (км/ч) средняя скорость поезда;
2) 50 * 7 = 350 (км) расстояние между городами.
Ответ: 350 км

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