SOLUTION: How much pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: How much pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 352370: How much pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let A be the amount of 100% acid.
100A%2B20%283%29=60%28A%2B3%29
100A%2B60=60A%2B180
40A=120
highlight%28A=3%29gallons