document.write( "Question 1071292: Two gasohol mixtures are available, one with 6.35% alcohol and the other with 11.28% alcohol. How many litres of the 6.35% mixture must be added to 25.0 L of the other mixture to make a final mixture containing 8.00% alcohol?
\n" ); document.write( "Round the answer to one decimal place
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Algebra.Com's Answer #686246 by Boreal(15235)\"\" \"About 
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x=number of l needed.
\n" ); document.write( ".0635x+(25)(.1128)=(25+x)(.08), the \"pure\" amount
\n" ); document.write( ".0635+2.82=2+.08x
\n" ); document.write( "-0.0165x=-.82
\n" ); document.write( "x=49.7 liters.
\n" ); document.write( "Rough check.
\n" ); document.write( "This is about twice as much of the lower amount, and the lower amount is 1.65% less concentrated and the higher amount is 3.3% more concentrated. This makes sense.
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