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

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) (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.

, where w is the ounces of water to evaporate.
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