SOLUTION: a chemist has one solution that is 20% salt and a second solution that is 45% salt. how many liters of each should be used in order to get 20 L of a solution that is 30% salt?

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Question 460605: a chemist has one solution that is 20% salt and a second solution that is 45% salt. how many liters of each should be used in order to get 20 L of a solution that is 30% salt?
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
.2x+.45y=.3*20
x+y=20
x=12 y=8