document.write( "Question 651843: For her chemistry experiment, Marisol needs 2 liters of a 50% alcohol solution. The lab has two containers, one with 40% alcohol solution and the other with 80% alcohol solution. \n" ); document.write( "

Algebra.Com's Answer #407835 by Edwin McCravy(20056) $\"\"$ $\"About$

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document.write( "So if you mix x liters of the weaker with y liters of the \r\n" );
document.write( "stronger you'll have 2 liters of liquid. so the first \r\n" );
document.write( "equation is\r\n" );
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document.write( "       x + y = 2\r\n" );
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document.write( "40& of the x liters is .4x liters of pure alcohol and\r\n" );
document.write( "80& of the y liters is .8x liters of pure alcohol. \r\n" );
document.write( "So that totals up 50% of the 2 liters of liquid, which \r\n" );
document.write( "is .5 times 2 or 1 liter, so\r\n" );
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document.write( "    .4x + .8y = 1\r\n" );
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document.write( "Solve that system\r\n" );
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document.write( "   \r\n" );
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document.write( "x =  and y = \r\n" );
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document.write( "Edwin

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