SOLUTION: An orchard operator must dilute 11 quarts of a 60% insecticide solution by adding water. How many quarts of water should be added to get a mixture that is 2% insecticide?

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Question 263690: An orchard operator must dilute 11 quarts of a 60% insecticide solution by adding water. How many quarts of water should be added to get a mixture that is 2% insecticide?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
11*.4+x=.98*(11+x)
x=319 quarts of water must be added.
11*.4+319=.98(319)