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