SOLUTION: 25 tonnes of mixture, has 18% H2O. How many gallons of H2O, to make mixture 50% H2O?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: 25 tonnes of mixture, has 18% H2O. How many gallons of H2O, to make mixture 50% H2O?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 816449: 25 tonnes of mixture, has 18% H2O. How many gallons of H2O, to make mixture 50% H2O?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
25 tonnes of mixture, has 18% H2O. How many gallons of H2O, to make mixture 50% H2O?
.18*25+x=.5*(25+x)
4.5+x=12.5+.5x
.5x=8
x=16
check
.18*25+16=.5(41)
4.5+16=20.5
ok