Answer:
7
40/5=8
8(3)=24
24-10=14
14/2=7
Step-by-step 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.
