# A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The premium antifreeze solution contains 85% pure antifreeze. The company wants to obtain 170 gallons of a mixture that contains 70% pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed?

Question
Asked Oct 8, 2019
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A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The premium antifreeze solution contains 85% pure antifreeze. The company wants to obtain 170 gallons of a mixture that contains 70% pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed?

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## Expert Answer

Step 1

Let they will need x  gallons of premium antifreeze solution.

So they must have (170-x) gallons of water.

Step 2

The mixture contains 70% antifreeze solution. So, 70% of 170= 0.70 times 170=119 gallons.

This must...

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