Question 219575: Hi, I have a solution/miture question. I can solve the problem just fine once I get it in the right order... but this one I'm having a hard time putting all the info where it belongs.
Q) A pharmacist has 20L of a 10% drug solution. How many liters of 5% solution must be added to get a mixture that is 8%?
If you could just help me get this in the right format I would would be so thankful!! Thanks!!!
Casie R
Found 2 solutions by RAY100, josmiceli:
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! Let x= amt added in liters
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.1(20) + .05x = .08(20+x),,,drug amt,,,,,note total volume is x+20
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.(2) +.05x = 1.6 + .08x
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.(.4) = .03 x
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13.33333 = x in liters
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check,,,.1*20 +.05*13.33333= .08*33.33333
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2+.667 = 2.6667,,,ok
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Answer by josmiceli(19441)  (Show Source):
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