document.write( "Question 492614: determine how many liters of a 7 percent acid solution and how many liters of a 12 percent acid solution should be mixed by a chemist to obtain 6 liters of a 10 percent acid solution.
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Algebra.Com's Answer #335145 by chessace(471)\"\" \"About 
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x * 0.07 + y * 0.12 = 6 * 0.10
\n" ); document.write( "x + y = 6
\n" ); document.write( "7x + 12y = 60
\n" ); document.write( "7x + 7y = 42
\n" ); document.write( "5y = 18
\n" ); document.write( "y = 3.6
\n" ); document.write( "x = 2.4
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