Предмет: Математика, автор: vadik73

(11/15a+7/12):7.1/4=1/3

Ответы

Автор ответа: Oksano4ka
0

(11/15a+7/12):7.1/4=1/3

(44а+35)/60=(1/3)*(29/4)

(44а+35)/60=29/12

44а+35=145

44а=110

а=2.1/2

а=2,5

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