SOLUTION: Suppose that you have a supply of 30% solution of alcohol and a 70% solution of alcohol. How many quarts of each should be mixed to produce 20 quarts that is 40% alcohol?

SOLUTION: Suppose that you have a supply of 30% solution of alcohol and a 70% solution of alcohol. How many quarts of each should be mixed to produce 20 quarts that is 40% alcohol?

Algebra.Com

Question 882531: Suppose that you have a supply of 30% solution of alcohol and a 70% solution of alcohol. How many quarts of each should be mixed to produce 20 quarts that is 40% alcohol?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Previously Posted
.70x + .30(20Q -x) = .40(20Q)
x = .10(20Q)/.40
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