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algebra homework

October 20th, 2009 admin No comments


Algebra homework help. How to put this seemingly easy problem into an equation and solve?

A pharmacist has 20 Liters of a 10% drug solution. How many liters of a 5% drug solution must be added to get a mixture that is 8%?

P.S. I think the equation is .10(20) + .05(x) = .08(20 + x) , but for some reason, i’m not getting the answer i’m supposed to get. Am i setting up the problem wrong or solving it wrong? Thanks.

Using that equation I got thirteen and one-third liters. As far as I can tell the equation looks correct.

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