SOLUTION: How much water must be added to 30oz of a 80% solution to change it to a 60% solution?

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Question 768987: How much water must be added to 30oz of a 80% solution to change it to a 60% solution?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
How much water must be added to 30oz of a 80% solution to change it to a 60% solution?
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let x=amt of water to add
80%*30+0%x=60%(x+30)
24+0=0.6x+18
0.6x=24-18=6
x=10
amt of water to add=10 oz