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posted by darren Friday, October 1, 2010 at 6:36pm.
scientist needs 5L of 12% solution. She has on 10% and 17% solution. How much of each does
.12(5)=.10(x)+.17(5-x) where x is the amount of 10% solution and 5-x is the rest amount of the 5L of 17% solution
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