Предмет: Математика, автор: Kristiminkina

Номер 1071(2)
Плиз прошу ваc!!!
Мне очень надо.....

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Автор ответа: miron2077
0
6.8-3,2=3,6КМ прошли оба з 0,4 часа
3,6:0,4=9км/час скорость удаления (сумма скоростей)
х скорость одного
 х+0,6 скорость другого
х+х+0,6=9
х=8,4:2
х=4,2км/час скорость одного
4,2+0,6=4,8км/час скорость второго

Автор ответа: miron2077
0
Там не поезда, а пешеходы! Читайте условие!
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