Предмет: Математика, автор: kornijcukdiana3

У трьох бідонах було 15,5 л молока. У другому бідоні було на 0,7 менше, ніж у першому, а в третьому бвдоні- на 0,4 більше, ніж у другом. Скільки літрів молока було в третьому бітоні?

Ответы

Автор ответа: ishchenkooleksandr07
0

Ответ:

5,2л

Пошаговое объяснение:У першому бідоні було Х літрів, у другому (Х-0,7)л. у третьому було (Х-0.7)+0,4

Маємо рівняння

Х+(Х-0,7)+(Х-0,7+0,4)=15,5

3х=15,5+0,7+0,7-0,4

х=5.5

У першому бідоні 5.5л у другому 4,8л у третьому 5,2л

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