SOLUTION: A chemical company makes two brands of antifreeze. The first brand is 65% pure antifreeze, and the second brand is 90% pure antifreeze. In order to obtain 180 gallons o

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: A chemical company makes two brands of antifreeze. The first brand is 65% pure antifreeze, and the second brand is 90% pure antifreeze. In order to obtain 180 gallons o      Log On

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Question 1038311: A chemical company makes two brands of antifreeze. The first brand is
65%
pure antifreeze, and the second brand is
90%
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(39623) About Me  (Show Source):
You can put this solution on YOUR website!
This is so common a mixture question that reference is made to a lesson:
Two-Part Mixture, Find amount of both parts