SOLUTION: Suppose that you have a supply of a 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?
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-> SOLUTION: Suppose that you have a supply of a 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?
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Question 883015: Suppose that you have a supply of a 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 stanbon(75887) (Show Source):
You can put this solution on YOUR website! Suppose that you have a supply of a 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?
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Equation:
alch + alch = alch
0.30x + 0.70(20-x) = 0.40*20
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30x + 70*20 - 70x = 40*20
-40x = -30*20
x = 15 quarts (amt. of 30% solution needed)
20-x = 5 quarts (oamt. of 70% solution needed)
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Cheers,
Stan H.
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