A chemical company makes two brands of antifreeze. The first brand is 55% pure antifreeze, and the second brand is 95% pure antifreeze. In order to obtain 180 gallons of a mixture that contains 85% pure antifreeze, how many gallons of each brand of antifreeze must be used?

Answer rating: 100% (QA)

Step 1 Let x gallons of first brand and180x gallons of second brand must be ... View the full answer