Question

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 60% pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed?

Answer 1

75 gallons of water

180 gallons of premium anti-freeze

Explanation:

X + Y = 255

X = 255 - Y

0.85Y = 0.6(255)

0.85Y = 153

Y = 180

X = 255 - 180

X = 75