SOLUTION: how many quarts of pure antifreeze must be added to 8 quarts of a 10% solution to obtain a 20% antifreeze solution?
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Question 941971: how many quarts of pure antifreeze must be added to 8 quarts of a 10% solution to obtain a 20% antifreeze solution?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = quarts of pure antifreeze needed
= quarts of antifreeze in 10% solution
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1 quart of pure antifreeze is needed
check:
OK
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