SOLUTION: 1. How many gallons of a 10% antifreeze solution and a 20% antifreeze solution must be combined to make 12 gallons of a 15% solution?
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Question 809004: 1. How many gallons of a 10% antifreeze solution and a 20% antifreeze solution must be combined to make 12 gallons of a 15% solution?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
x+y=12,
.1x+.2y=.15*12
x=6 y=6
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