SOLUTION: How many gallons of water must be added to 6 gallons of an 80% alcohol solution to obtain a 60% solution? and i will tell my friends about this site

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Question 1172279: How many gallons of water must be added to 6 gallons of an 80% alcohol solution to obtain a 60% solution? and i will tell my friends about this site
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
g gallons of water to add

0.8%2A6%2F%28g%2B6%29=0.6
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0.8%2A6=0.6%28g%2B6%29
0.8%2A6=0.6g%2B0.6%2A6
0.8%2A6-0.6%2A6=0.6g

g=%280.8%2A6-0.6%2A6%29%2F0.6-------compute this.