SOLUTION: Mr. Sourplum has 11 quarts of punch that is 16% lemonade. He wants to make some punch containing 52% lemonade. How much lemonade should he add?

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Question 316847: Mr. Sourplum has 11 quarts of punch that is 16% lemonade. He wants to make some punch containing 52% lemonade. How much lemonade should he add?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
He adds X quarts of 100% lemonade.
16%2811%29%2B100%28X%29=52%2811%2BX%29
176%2B100X=572%2B52X
48X=396
highlight%28X=33%2F4%29
.
.
.
He needs to add 33/4 or 8.25 quarts of lemonade.