SOLUTION: How many gallons of pure alcohol must be mixed with 5 gallons of a solution that is 20 percent to make a solution that is 50% alcohol?
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Question 631697: How many gallons of pure alcohol must be mixed with 5 gallons of a solution that is 20 percent to make a solution that is 50% alcohol?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = gallons of pure alcohol needed
gallons of pure alcohol in 20% solution
given:
3 gallons of pure alcohol are needed
check:
OK
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