SOLUTION: How many gallons of a 40% alcohol solution must be mixed with 70 gallons of a 13% solution to obtain a solution that is 30% alchol?

SOLUTION: How many gallons of a 40% alcohol solution must be mixed with 70 gallons of a 13% solution to obtain a solution that is 30% alchol?

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Question 774119: How many gallons of a 40% alcohol solution must be mixed with 70 gallons of a 13% solution to obtain a solution that is 30% alchol?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
v = volume, gallons of the 40% alcohol to add

find v
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