SOLUTION: A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze, and the second brand is 70% pure antifreeze. In order to obtain 150 gallons of a mixtur

Question 1037765: A chemical company makes two brands of antifreeze. The first brand is
45% pure antifreeze, and the second brand is 70% pure antifreeze. In order to obtain 150 gallons of a mixture that contains 55% pure antifreeze, how many gallons of each brand of antifreeze must be used?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
x for volume of the 45% and y for volume of the 70%.

A lesson how this works: Mixing two concentrations for known amount of mixture i
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