SOLUTION: how much water must be evaporated from 28 ounces of 6% salt solution to make a 7% salt solution

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: how much water must be evaporated from 28 ounces of 6% salt solution to make a 7% salt solution      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 712273: how much water must be evaporated from 28 ounces of 6% salt solution to make a 7% salt solution
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
So the salt will stay but the water will be less, so the amount of solution will be less.

(Amount of Salt)/(amount of solution)=7%

Will the amount of salt change? No.
Will the amount of solution change? Yes.
Then this means the denominator will need to become smaller. Become fewer ounces.

28%2A6%2F%2828-w%29=7, where w is the ounces of water to evaporate.