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.
2007-01-23 08:31:39 · 3 answers · asked by World Expert 1 in Education & Reference ➔ Homework Help
Using that equation I got thirteen and one-third liters. As far as I can tell the equation looks correct.
2007-01-23 08:40:40 · answer #1 · answered by mirramai 3 · 0⤊ 0⤋
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2016-11-01 02:42:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I would solve this by using CV=C1V1 + C2(20-V1). You're adding, not subtracting.
2007-01-24 00:51:48 · answer #3 · answered by Lea 7 · 0⤊ 0⤋