document.write( "Question 816021: You are to prepare 1500 milliliters of an alcohol solution containing 0.3 ethyl alcohol and 0.7 distilled water. How many milliliters of each ( distilled water/ ethyl alcohol) will be used \n" ); document.write( "
Algebra.Com's Answer #491316 by josmiceli(19441)\"\" \"About 
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Let \"+a+\" = ml of ethyl alcohol in solution
\n" ); document.write( "Let \"+b+\" = ml of distilled water in solution
\n" ); document.write( "\"+a+%2B+b+=+1500+\" ml
\n" ); document.write( "\"+a+%2F+1500+=+.3+\"
\n" ); document.write( "\"+a+=+450+\"
\n" ); document.write( "and
\n" ); document.write( "\"+b+=+1500+-+a+\"
\n" ); document.write( "\"+b+=+1005+\"
\n" ); document.write( "------------
\n" ); document.write( "450 ml of alcohol and 1005 ml of distilled
\n" ); document.write( "water are needed
\n" ); document.write( "
\n" );