Question

A pet survey found that the ratio of dogs to cats is 2/5. Write and solve a proportion that shows the number of dogs

if the number of cats is 140.

Answer 1

The answer is 2 dogs/5 cats = 56 dogs/140 cats.

Explanation:

If you’re doing this on paper you should pick option D.

Answer 2

So,

The ratio of dogs to cats:

`(2)/(5)`

The other proportion:

`(x)/(140)`


`(2)/(5) = (x)/(140)`

5 times 28 is 140.

Multiply the fraction by the appropriate form of 1

`(2)/(5) * (28)/(28) = (56)/(140)`

There are 56 dogs when the number of cats is 140.