Question

the ratio of zinc and copper in an alloy is 7 ratio 9 if the weight of the copper in the alloy is 11.7 kg find the weight of the zinc in the alloy ​

Answer 1

Answer:

Step-by-step explanation:

Ratio = 7:9

Therefore,

7/9=x/11.7

Therefore,

X=7×11.7/9

X= 9.1kg

Answer 2

ration of zinc and copper is 7:9

then their weight ratio can also be 7:9

let weight of since be x

so

7:9=x:11.7

7/9=x/11.7

9x=7×11.7

x=7×11.7/9

x=7×1.3

x= 9.1