SOLUTION: how much pure acid should be mixed with 3 gallons of a 50% acid solution to get an 80% acid solution?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: how much pure acid should be mixed with 3 gallons of a 50% acid solution to get an 80% acid solution?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 354736: how much pure acid should be mixed with 3 gallons of a 50% acid solution to get an 80% acid solution?


Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
(x)(100%) + (3)(50%) = (3 + x)(80%)