SOLUTION: How would you solve a mixture problem, for example. John wants to make a 100 ml of 5% alcohol solution mixing a quantity of a 2% alcohol solution with a 7% alcohol solution. What a

SOLUTION: How would you solve a mixture problem, for example. John wants to make a 100 ml of 5% alcohol solution mixing a quantity of a 2% alcohol solution with a 7% alcohol solution. What a

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Question 200566: How would you solve a mixture problem, for example. John wants to make a 100 ml of 5% alcohol solution mixing a quantity of a 2% alcohol solution with a 7% alcohol solution. What are the quantities of each of the two solutions (2% and 7%) he has to use?
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
.02x+.07(100-x)=.05(100)
.02x+7-.07x=5
-.05x=-2
x=2/.05
x=40ml of 5% solution
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