Question

180 dividido em partes inversamente proporcionais a 4, 5 e 20

Answer 1

Resposta: bem 10

Explicação passo-a-passo:

Answer 2

$\large\boxed{\begin{array}{l}\sf m\cdot m\cdot c\,(4,5,20)=20\\\sf\dfrac{1}{4}\cdot20=5\\\\\sf\dfrac{1}{5}\cdot20=4\\\\\sf\dfrac{1}{20}\cdot20=1\\\\\sf k=\dfrac{total}{soma\,dos\,raz\tilde oes}\\\\\sf k=\dfrac{180}{5+4+1}=\dfrac{18\backslash\!\!\!0}{1\backslash\!\!\!0}=18\\\\\sf 1^a\,parte: 5\cdot18=90\\\sf 2^a~parte=4\cdot18=72\\\sf 3^a~parte=1\cdot18=18\end{array}}$