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How many quarts of pure antifreeze must be added to 7 quarts of a 10​% antifreeze solution to obtain a ​30% antifreeze​ solution?

How many quarts of pure antifreeze must be added to 7 quarts of a 10​% antifreeze solution to obtain a ​30% antifreeze​ solution?
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3 votes
How many quarts of pure antifreeze must be added to 7 quarts of a 10​% antifreeze solution to obtain a ​30% antifreeze​ solution?

User Rutha
by
8.0k points

1 Answer

3 votes

Answer: 2 quarts of pure antifreeze are needed.

Explanation:

User Andreas Schmid
by
7.9k points
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