document.write( "Question 1174695: A 40 liter of 30% ethyl alcohol needs to be reduced to a concentration of 25% ethy alcohol. How much of a 20% ethyl alcohol should be mixed to it in order to achieve the desired concentration? \n" ); document.write( "

Algebra.Com's Answer #800180 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi\r\n" );
document.write( "A 40 liter of 30% ethyl alcohol: How much  \"x\"  of a 20% ethyl alcohol should be added to reduce the concentration to 25% ethyl alcohol. \r\n" );
document.write( "  .30(40L) + .20x = .25(40+x)\r\n" );
document.write( "         .05(40L) = .05x\r\n" );
document.write( "             x = 40L of a 20% ethyl alcohol should be added\r\n" );
document.write( "  12 + 8 = (1/4)80  checks\r\n" );
document.write( "         \r\n" );
document.write( "Wish You the Best in your Studies.\r\n" );
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