document.write( "Question 662563: How much water must be added to a 20 quarts of a 12% alcohol solution to dilute it to a 9% solution? \n" ); document.write( "
Algebra.Com's Answer #471234 by modi.kk91(20)\"\" \"About 
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by allegation and mixture formula\r
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\n" ); document.write( "\n" ); document.write( " o% 12%\r
\n" ); document.write( "\n" ); document.write( " 9% \r
\n" ); document.write( "\n" ); document.write( " 12-9=3 and 9-0=9
\n" ); document.write( " ratio=3:9=1:3\r
\n" ); document.write( "\n" ); document.write( " 1:3::x:20\r
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\n" ); document.write( "\n" ); document.write( " x=20/3
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