SOLUTION: A car radiator holds 2 gallons of fluid and initially is empty. If a mixture of water and antifreeze contains 70% antifreeze and another mixture contains 20% antifreeze, how much o

Question 711002: A car radiator holds 2 gallons of fluid and initially is empty. If a mixture of water and antifreeze contains 70% antifreeze and another mixture contains 20% antifreeze, how much of each should be combined to fill the radiator with a 50% antifreeze mixture?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = gallons of 70% antifreeze to be added
= gallons of 20% antifreeze to be added
= pure antifreeze in 70% mixture
= pure antifreeze in 20% mixture
given:

1.2 gallons of 70% antifreeze needs to be added
.8 gallons of 20% antifreeze needs to be added
check:

OK
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