SOLUTION: How many quarts of pure anitifreeze must be added to 4 quarts of a 20% antifreeze solution to obtain a 50% antifreez solution?
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Question 414986: How many quarts of pure anitifreeze must be added to 4 quarts of a 20% antifreeze solution to obtain a 50% antifreez solution?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = quarts of pure antifreeze needed
= pure antifreeze in 20% solution
2.4 quarts of pure antifreeze must be added
check:
OK
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