document.write( "Question 340448: How many quarts of water need to be added to 80 quarts of 80% alcohol to obtain a 70% alcohol solution \n" ); document.write( "

Algebra.Com's Answer #243986 by Fombitz(32388) $\"\"$ $\"About$

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Water is a 0% alcohol solution.
\n" ); document.write( "Let A be the amount of water added.
\n" ); document.write( " $\"0%28A%29%2B80%2880%29=70%28A%2B80%29\"$
\n" ); document.write( " $\"6400=70A%2B5600\"$
\n" ); document.write( " $\"70A=800\"$
\n" ); document.write( " $\"highlight%28A=80%2F7%29\"$ quarts \n" ); document.write( "

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