Предмет: Математика, автор: Яна09032005

решите пропорцию 21/x=3/28

Ответы

Автор ответа: Nurzhan94

0

$frac{21}{x} = frac{3}{28}$

3x=28*21
3x=588
x=588:3
x=196

Ответ 196

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