SOLUTION: A car radiator contains 5 liters of a 25% antifreeze solution. How many liters must be removed and replaced by a 75% antifreeze solution to leave the radiator filled with a 55% ant
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Question 251503: A car radiator contains 5 liters of a 25% antifreeze solution. How many liters must be removed and replaced by a 75% antifreeze solution to leave the radiator filled with a 55% antifreeze solution?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
A car radiator contains 5 liters of a 25% antifreeze solution. How many liters must be removed and replaced by a 75% antifreeze solution to leave the radiator filled with a 55% antifreeze solution?
.
Let x = amount of anti-freeze removed AND replaced w/75% antifreeze
then
.25(5-x) + .75x = .55(5)
1.25 - .25x + .75x = 2.75
1.25 + .50x = 2.75
.50x = 1.50
x = 3 Liters
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