Предмет: Математика, автор: dima22e

от двух пристаней ,находящихся на росстоянии 510 км ,отплыли в 7 ч навстречу дру другу катер и моторная лодка .Встреча произошла в 24 ч этого же дня .Катер шёл со средней скоростью 19 км ч . С какой скоростью шла лодка?

Ответы

Автор ответа: MalInKa555

1) 24-7=17(ч) через столько встретились
2)510:17=30(км/ч) скорость лодки

Автор ответа: triolana

1)через сколько встретились?

24-7=17 час

2)прошёл катер до встречи?

19*17=323 км

3)прошла лодка до встречи

510-323=187 км

4)скорость лодки

187:17=11 км/час

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