SOLUTION: A chemical company makes two brands of antifreeze. The first brand is 55% pure antifreeze, and the second brand is 85% pure antifreeze. In order to obtain 180 gallons of a mixt

Question 1189924: A chemical company makes two brands of antifreeze. The first brand is 55% pure antifreeze, and the second brand is 85% pure antifreeze. In order to obtain 180 gallons of a mixture that contains 75% pure antifreeze, how many gallons of each brand of antifreeze must be used?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
v of the 85%
180-v of the 55%

----------simplify or reduce this.

----------this is mostly simplified.
-------amount of the 85% antifreeze to use.
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