SOLUTION: A storage container hols 120 liters of fuel which is 3% oil and 97% gas. HOw many liters of oil should be added for use in an engine that requires a 10% oil mixture?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: A storage container hols 120 liters of fuel which is 3% oil and 97% gas. HOw many liters of oil should be added for use in an engine that requires a 10% oil mixture?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 293029: A storage container hols 120 liters of fuel which is 3% oil and 97% gas. HOw many liters of oil should be added for use in an engine that requires a 10% oil mixture?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.03*120+x=.10*(120+x)
3.6+x=12+.1x
.9x=12-3.6
.9x=8.4
x=9.33