Предмет: Математика, автор: angelskvor2015

Пожалуйста решение по действиям . Экскаватор роет траншею со скоростью 2м\мин . Трубоукладчик начал работать когда было готово 60 м траншеи . Трубоукладчик укладывает трубу со скоростью 3м\мин . Какое расстояние будет между ними через 45 мин совместной работы ?

Ответы

Автор ответа: Tove

1) 45 мин•2 м/мин=90 метров -пройдет экскаватор за 45 минут.
2) 45 мин•3 м/мин=135 метров -пройдет трубоукладчик за 45 минут.
3) 60 м+90 м-135=15 метров
Ответ: 15 метров будет между ними через 45 минут.

angelskvor2015: спасибо большоеее

Tove: не за что)

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