Problema Solution
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 255 gallons of a mixture that contains 80% pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed?
Answer provided by our tutors
Let 'x' represent the gallons of water needed and 'y' represent the gallons of the premium antifreeze solution.
x + y = 255
0*x + 0.85y = 0.80*255
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click here to see the system of equations solved for x and y
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x = 15 gal
y = 240 gal
15 gallons of water and 240 gallons of premium antifreeze solution must be mixed.