Предмет: Математика, автор: uwupolinko

пожалуйста помогите дам 30 баллов ​

Приложения:

Ответы

Автор ответа: Papapapapapam
1

Ответ:

12,125 км/ч

Пошаговое объяснение:

Vлодки против теч = Vлодки - Vтеч =  14 5/8 - 2 1/2 = 12 1/8 = 12,125км/ч

uwupolinko: это скорость первоначальная
Papapapapapam: 14 5/8 - это первоначальная скорость лодки по условию
Papapapapapam: без течения
uwupolinko: нет
Papapapapapam: да, там так написано
uwupolinko: 12 км это первоначальная сама училка мне сказала
Papapapapapam: она была бы первоначальной, если бы в условии написали, что 14 5/8 - скорость лодки по течению
Papapapapapam: а там просто скорость лодки
Papapapapapam: собственная
Papapapapapam: можно было бы объяснить учительнице, что она не права
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