Предмет: Математика, автор: юляша91

Ахиллес бежал со скоростью 470 метров в минуту и увидел перед собой черепаху на расстоянии 900 метров. Через сколько секунд он догонит черепаху если она плетется со скоростью 20 метров в минуту?

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Автор ответа: perushkina2004

470-20=450(м/мин)-скорость сближения900:450=2(мин)

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