Предмет: Математика, автор: sergey0780

помогите пппппппппппппппппппппжжжжжжжжжжжжжжжжжжж 1 ваинт 2 номер под буквой б срочно!

Приложения:

sergey0780: если напишешь правильно то поставлю 5звезд и по благодарю

sergey0780: ну вобщем спс

Cyborg777: Через 3 часа. Первый катер 90 км ,а второй 105км

Ответы

Автор ответа: marishkanik

30+35=65(км/ч) общая скорость

195:65=3(ч) время затраченное на путь

30*3=90(км) проплывает один катер
35*3=105(км) проплывает второй катер 2Б) 195:3=65(км/ч) общая скорость 65-30=35(км/ч) скорость второго катера

sergey0780: спасибо но нужно 2 номер под буквой б

marishkanik: Добавила

sergey0780: спосибо

Cyborg777: Ответ:Через 3 часа они встретятся. Первый катер проплыл 90 км ,а второй 105 км

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