Question

Solve for x.

Question options:

A)

5

B)

4

C)

6

D)

3

Answer 1

x = 3

Explanation:

set up proportion based on corresponding sides of similar triangles:

15 / 10 = 15 + x / 12

cross-multiply:

10(15 + x) = 15(12)

150 + 10x = 180

10x = 30

x = 3