SOLUTION: How many gallons of 60% antifreeze should be mixed with 40% antifreeze to make 80gallons of 45%antifreeze

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Question 250383: How many gallons of 60% antifreeze should be mixed with 40% antifreeze to make 80gallons of 45%antifreeze
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.60x+.40(80-x)=.45(80)
x= amount of 60 %