document.write( "Question 1095387: How many liters of 70% alcohol and 40% solution must be mixed to obtain 6 liters of 60% alcohol solution? \n" ); document.write( "
Algebra.Com's Answer #709896 by josgarithmetic(39617)\"\" \"About 
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x and y liters of 40% and 70%\r
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\n" ); document.write( "\n" ); document.write( "\"system%2840x%2B70y=60%2A6%2Cx%2By=6%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"4x%2B7y=36\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight_green%284x%2B7%286-x%29=36%29\"--------equation in ONE variable\r
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\n" ); document.write( "\n" ); document.write( "\"4x%2B42-7x=36\"
\n" ); document.write( "\"-3x=36-42\"
\n" ); document.write( "\"3x=6\"
\n" ); document.write( "\"x=2\"
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\n" ); document.write( "2 liters of 40% alcohol
\n" ); document.write( "4 liters of 70% alcohol
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