Предмет: Математика, автор: djasurakhmetov

найдите неизвестный член пропорции 9/x=1/9:1/4

Ответы

Автор ответа: jekadva

8

Ответ:

Пошаговое объяснение:

9/x=1/9:1/4

1/9 * x = 9 * 1/4

1/9x = 9/4

x = 9/4 : 1/9

x = 9/4 * 9/1

x = 81/4

x = 20 1/4

djasurakhmetov: ты лучший

yhfuyieik: не очень

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