Предмет: Математика, автор: CookieHorse

Турист шёл 3,8 ч со скоростью 1,2 м/с, а затем 2,2 ч со скоростью 0,9 м/с. Какова средняя скорость движения туриста на всём пути?

Ответы

Автор ответа: Aнaстаcия
0

1.2м/сек=4.32км/ч

0.9м/сек=3.24км/ч

1)3.8*4.32=16.416км-прошёл за 3.8 часа.

2)2.2*3.24=7.128км-прошёл за 2.2 часа.

3)3.8+2.2=6часов-время в пути.

4)16.416+7.128=23.544км-прошёл за 6 часов.

5)23.544:6=3.924км/ч (1.09м/сек)средняя скорость)

Автор ответа: CookieHorse
0
Можете "1,2 м/с" и "0,9 м/с" расписать по действиям? (А точнее то действие как их перевести)
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