SOLUTION: How many pounds of water must be evaporated from 50 pounds of a 3% salt solution so that the remaining solution will be 5% salt?

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Question 873203: How many pounds of water must be evaporated from 50 pounds of a 3% salt solution so that the remaining solution will be 5% salt?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x is how much water to evaporate.
50%2A3%2F%2850-x%29=5