Предмет: Математика, автор: 6eyf95kjs6

Бегун пробежал 120м за 15 секунд. Найдите среднюю скорость бегуна на дистанции. Ответ дайте в километрах в час.

Ответы

Автор ответа: DNHelper
7

Ответ:

28,8

Пошаговое объяснение:

120 м = 0,12 км

15 с = 15 / 3600 = 1 / 240 ч

0,12 / (1 / 240) = 240 * 0,12 = 28,8 км / ч.

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