SOLUTION: how many quarts of pure anti-freeze must be added to 7 quarts of a 20% antifreeze solution to obtain a 30% anti-freeze solution?
__Quart(s )of pure antifreeze must be added.
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__Quart(s )of pure antifreeze must be added.
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Question 550477: how many quarts of pure anti-freeze must be added to 7 quarts of a 20% antifreeze solution to obtain a 30% anti-freeze solution?
__Quart(s )of pure antifreeze must be added. Answer by scott8148(6628) (Show Source):
