Предмет: Алгебра, автор: nazat20140

Човен проплив 6км проти течи ріки та 12км за течією. Витративши на весь шлях 2 год. Знайдіть власну швидкість човна, якщо швидкість течії річки становить 3 км/год.

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Автор ответа: MizoriesKun

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