Concept explainers
Find that liters of solution that must be drawn off and replaced by a
Answer to Problem 20P
3 L
Explanation of Solution
Given :
A car radiator is filled with 5 L of a
Calculation:
Let the liters of 25% antifreeze solution that is drawn off and replaced by 75% antifreeze solution = x
Total antifreeze solution = 5 L
So, 25% antifreeze solution = (5- x )
New solution in radiator is 5 L of 55% antifreeze solution .
So,
So,
3 L of 25% solution must be drawn off and replaced by 75% antifreeze solution to make 55% of antifreeze solution in the radiator.
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Algebra and Trigonometry: Structure and Method, Book 2
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