Question

A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze, and the second brand is 65% pure antifreeze. In order to obtain 180 gallons of a mixture that contains 60% pure antifreeze, how many gallons of each brand of antifreeze must be used?

Answer 1

Explanation:

A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze, and the second brand is 65% pure antifreeze. In order to obtain 180 gallons of a mixture that contains 60% pure antifreeze, how many gallons of each brand of antifreeze must be used?