document.write( "Question 423196: How much water must be added to 12L of a 40% solution of alcohol to obtain a 30% solution? \n" ); document.write( "
Algebra.Com's Answer #318671 by jorel1380(3719)\"\" \"About 
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12x.4=4.8
\n" ); document.write( ".3z=4.8
\n" ); document.write( "z=4.8/.3=16
\n" ); document.write( "16-12=4L of water needed for the solution..
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