SOLUTION: A car radiator has a capacity of 16 quarts and is filled with a 25% antifreeze solution. How much must be drained off and replaced with pure antifreeze to obtain a 40% antifreeze
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-> SOLUTION: A car radiator has a capacity of 16 quarts and is filled with a 25% antifreeze solution. How much must be drained off and replaced with pure antifreeze to obtain a 40% antifreeze
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Question 161149: A car radiator has a capacity of 16 quarts and is filled with a 25% antifreeze solution. How much must be drained off and replaced with pure antifreeze to obtain a 40% antifreeze solution? Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! .
Let x = amount drained off and replaced with pure antifreeze
.
.25(16-x) + x = .40(16)
4 - .25x + x = 6.4
4 + .75x = 6.4
.75x = 2.4
x = 3.2 quarts
