SOLUTION: If 4 gallons of alcohol is added to 2 gallons of a 15% alcohol solution, what percentage of alcohol is in the mixture?

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Question 425348: If 4 gallons of alcohol is added to 2 gallons of a 15% alcohol solution, what percentage of alcohol is in the mixture?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
2x.15=.3
4+.3=4.3
4.3/6=.7166667
The new mixture is 71.666667% alcohol..