SOLUTION: Twenty liters of a solution that is 63% alcohol is going to be diluted to 34% alcohol by adding water. How much water is added?

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Question 848892: Twenty liters of a solution that is 63% alcohol is going to be diluted to 34% alcohol by adding water. How much water is added?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Twenty liters of a solution that is 63% alcohol is going to be diluted to 34% alcohol by adding water.
How much water is added?
:
Let w = amt of water
:
A typical mixture equation
.63(20) = .34(w+20)
12.6 = .34w + 6.8
12.6 - 6.8 = .34w
5.8 = .34w
w = 5.8%2F.34
w = 17.06 liters of water