SOLUTION: Please help me answer this question: how many milliliters of pure water must be added to 100ml of a 4% salt solution to make a 2.5% salt solution?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: Please help me answer this question: how many milliliters of pure water must be added to 100ml of a 4% salt solution to make a 2.5% salt solution?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 504560: Please help me answer this question: how many milliliters of pure water must be added to 100ml of a 4% salt solution to make a 2.5% salt solution?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
100x.04=4ml salt
.025m=4
m=4/.025=160
Since you already have 100 ml of solution, you need to add 60 ml of pure water to get a 2.5% solution..