SOLUTION: I have 5percent by volume vinegar. How much water do I have to boil off to get 20 percent by volume.

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Question 878930: I have 5percent by volume vinegar. How much water do I have to boil off to get 20 percent by volume.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Let y = volume of water to remove. Assume your initial volume of vinegar is 1.

5%2A1%2F%281-y%29=20