SOLUTION: Find the percentage of change from $120 to $135?

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: Find the percentage of change from $120 to $135?      Log On


   

Question 976191: Find the percentage of change from $120 to $135?
Answer by MathLover1(20855) About Me  (Show Source):
You can put this solution on YOUR website!

120%2B%28x%2F100%29120=135
120%2B%28120x%2F100%29=135
1.20x=135-120
1.20x=15
x=15%2F1.2
x=12.5%

check:
%28x%2F100%29120=%2812.5%2F100%29120=0.125%2A120=15
then 120%2B%28120x%2F100%29=120%2B15=135