Question

divida o número 662 em parcelas inversamente proporcionais a 14,27 e 15
272,138 e 252
270,142 e 250
270, 140 e 252
274,140 e 248
270,136 e 256

Answer 1

x/14+x/27+x/15=662 mmc 1890
135x+70x+126x=1251180
X=1251180/331
X=3780


3780/14=270
3780/27=140
3780/15=252. Letra C

Answer 2

Resposta:

a=k/14

b=k/27

c=k/15

\frac{k}{14} + \frac{k}{27} + \frac{k}{15}=662 \\  \frac{331k}{1890} =662 \\ 331k=662.1890 \\ k= \frac{662.1890}{331} \\ k=3780

Assim,  

a=3780/14=270

b=3780/27=140

c=3780/15=252

Explicação passo-a-passo: