Предмет: Алгебра, автор: 0997488536v

даю 50 балов!!!
Якщо відкрити одначасно дві труби, то басейн буде наповнено за 6 год 15 хв. Коли спочатку відкрити на 10 год одну трубу, а потім відкрити другу, то басейн наповниться через 5 год спільної роботи. За скільки годин може наповнити цей басейн труба, яка качає воду повільніше?

Ответы

Автор ответа: anyamitrowic

Ответ:

Объяснение:Вроде все

Приложения:

Автор ответа: leosofia3212

Ответ:

Обидва крани разом за 1 годину наповнять 1\6 частину басейну.

Перший кран за 1 годину наповнить 1\10 частину басейну.

Другий кран за 1 годину наповнить 1\6 - 1\10 = 1\15 частину басейну.

Весь басейн другий кран наповнить за 1 : 1\15 = 15 годин.

Відповідь: 15 годин.

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