SOLUTION: A science teacher has one solution which is 20% pure salt and another solution which is 50% pure salt. How much of each solutionshould she mix if she wants 30 ounces of a 30% pure
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Question 426477: A science teacher has one solution which is 20% pure salt and another solution which is 50% pure salt. How much of each solutionshould she mix if she wants 30 ounces of a 30% pure salt solution?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
.2x+.5(30-x)=30*.3
.2x+15-.5x=9
-.3x=-6
x=6/.3
=20 oz. of 20% and 10 oz of 50%
.
Ed
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