document.write( "Question 1166486: Find the number of gallons of a 15% acid, 75% acid, and 60% that are required to make 100 gallons of 51% acid. If the sum of three times the number of gallons of a 15% acid and a 75% acid is thirty more than the number of gallons of 60% acid? \n" ); document.write( "

Algebra.Com's Answer #791004 by josgarithmetic(39617) $\"\"$ $\"About$

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document.write( "CONCENTRATION%       VOLUME         PURE Acid\r\n" );
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document.write( "   15                 x             0.15x\r\n" );
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document.write( "   60                 j             0.6(3x+3y-30)\r\n" );
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document.write( "   75                 y            0.75y\r\n" );
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document.write( "   51                 100          0.51*100\r\n" );
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\n" ); document.write( "\n" ); document.write( "This part seems unclear: \"If the sum of three times the number of gallons of a 15% acid and a 75% acid is thirty more than the number of gallons of 60% acid\"\r
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\n" ); document.write( "\n" ); document.write( " $\"3x%2B3y=j%2B30\"$
\n" ); document.write( " $\"j=3x%2B3y-30\"$ \r
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