Question

Mac has 117 white and black

horses on his farm. The ratio of
the number of black horses to the
number of white horses is 5:4.
Find the number of white horses
on Mac's farm​

Answer 1

The number of white horses is 52

Explanation:

Let

x ----> the number of black horses

y ----> the number of white horses

we know that

`x+y=117` ----> equation A

`(x)/(y)=(5)/(4)`

`x=(5)/(4)y` ----> equation B

Substitute equation B in equation A and solve for y

`(5)/(4)y+y=117`

`(9)/(4)y=117`

`y=117(4)/9\\y=52`

therefore

The number of white horses is 52