Question

A changes saved

Set up a proportion and use it to solve for x.
2
10
х
3

Answer 1

C. 15

Explanation:

The following proportional can be set-up for the figure given:

`(x + 3)/(x) = (10 + 2)/(10)`

Solve for x

`(x + 3)/(x) = (12)/(10)`

`(x + 3)/(x) = (6)/(5)`

Cross multiply

`5(x + 3) = x(6)`

`5x + 15 = 6x`

15 = 6x - 5x

15 = x

x = 15