Предмет: Математика, автор: даша660

задание #4 проверь себя в тестовой форме

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Автор ответа: SKelyan936

0

одна поливальная машина истратила за 5 мин 270 л воды,а другая 468 л за 9 мин.У какой машины производительность труда больше и насколько?

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