Question

What is the value of x?

Answer 1

Explanation:

Set up and solve an equation of ratios. One such equation would be:

5 40

--- = ------------

3 2x + 10

Cross multiplying, we get:

10x + 50 = 120, or 10x = 70. thus, x = 70/10, or x = 7.

Answer 2

7

40/5=8

8(3)=24

24-10=14

14/2=7