SOLUTION: A chemist is trying to make 30 gallons of a 42 percent solution. He only has a 50 percent and a 60 percent solution. How much of each are needed?
Question 660106: A chemist is trying to make 30 gallons of a 42 percent solution. He only has a 50 percent and a 60 percent solution. How much of each are needed? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A chemist is trying to make 30 gallons of a 42 percent solution. He only has a 50 percent and a 60 percent solution. How much of each are needed?
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f = amount of 50%
s = amount of 60%
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f + s = 30
50f + 60s = 42*(f + s)
