Предмет: Математика, автор: sonyaburnyakov

первую часть пути поезд шёл со скоростью 63 км/ч остальные 6 ч он шёл со скоростью 72 км/ч.за какое время поезд прошёл первую часть пути если весь путь равен 747 км?

Ответы

Автор ответа: Илья1119
0
1) 72×6=432 (км.)
2) 747-432=315 (км.)
3) 315÷63=5 (ч.)
Ответ: 5 часов.
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