С одной и той же станции одновременно в противоложных направлениях вышли два

С одной и той же станции одновременно в противоложных направлениях вышли два поезда-пассажирский и товарный. Пассажирский поезд едет со скоростью а км/ч, а скорость товарного поезда составляет 75% скорости пассажирского поезда. На какаом расстоянии друг от друга будут поезда через 2,4 часа? Составь вырожение и найди его значение при ( а=84.
- Предмет:
  Математика
- Автор:
  elisa7
- 6 лет назад

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