SOLUTION: A radiator holds 6 liters. how much of the 20% antifreeze solution should be drained & replaced with pure antifreeze to bring the solution up to 50% antifreeze?
Algebra.Com
Question 280418: A radiator holds 6 liters. how much of the 20% antifreeze solution should be drained & replaced with pure antifreeze to bring the solution up to 50% antifreeze?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
.2x+y=6*.5
x+y=6
x=3.75 and y=2.25
drain 2.25 liters and replace it with 2.25 liters of 100% antifreeze.
RELATED QUESTIONS
A radiator contains 6 liters of a 25% antifreeze solution. How much should be drained... (answered by checkley75)
A radiator contains 6 liters of a 25% antifreeze solution. How much should be drained and (answered by josgarithmetic)
a radiator contains 6 liters of a 33% antifreeze solution. how much water should be... (answered by richwmiller)
A car radiator holds 24 L of a 20% antifreeze solution. How much of the 20% solution... (answered by rapaljer)
A radiator contains 6 quarts of a 25% antifreeze solution. How much antifreeze should be (answered by checkley75)
A car radiator needs a 70% antifreeze solution. The radiator now holds 20 liters... (answered by josgarithmetic,ikleyn)
A radiatior contains 6 liters of a 20% antifreeze solution. How much should be drained... (answered by nerdybill)
A radiator holds 3 gallons and is currently full of 25% antifreeze solution. How much... (answered by josgarithmetic)
A radiator contains 6 quarts of a 25% antifreeze solution. How much anitfreeze should be... (answered by ankor@dixie-net.com)