Предмет: Математика, автор: smitt0307p305tr

Автобус выехал из города N в 7:15 часов и прибыл в пункт назначения в 15:00. За время пути пути автобус делал три остановки по 15 минут. Чему равно расстояние между городами,если скорость автобуса 80 км/ч?

Ответы

Автор ответа: xxxeol
0
РЕШЕНИЕ
Вычисляем время в пути.
1)  15:00 - 07:15 = (14-7) : (60-15) = 07:45 - всё время на трассе.
2) 07:45 - 00:30 = 07:15 = 7ч 15 мин = 7 1/4 = 7.25 ч - время движения.
3) S = V*t = 80 * 7.25 = 580 км - расстояние - ОТВЕТ 
Автор ответа: xxxeol
0
Учли две остановки по 15 мин = 30 мин.
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