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Автор - Nada12345678a

Обчисліть 13% від 39; 15% від 36.

Ответ

Автор - yana1969

frac{39}{x} =frac{100}{13}⇒x=frac{39*13}{100}= [tex]frac{507}{100}= 5,07

frac{36}{x} = frac{100}{15}⇒x= frac{36*15}{100}=[tex]frac{540}{100}=5,4

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