document.write( "Question 379008: Hi, \r
\n" ); document.write( "\n" ); document.write( " I need help with this word problem it could be elimination or substituiton method\r
\n" ); document.write( "\n" ); document.write( " Prob: pure acid is added to a 10% acid solution to obtain 54 liters of a 20% acid solution. What amounts of each should be used
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Algebra.Com's Answer #269135 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Pure acid is a 100% solution.
\n" ); document.write( "Let A be the amount of pure acid.
\n" ); document.write( "Let B be the amount of 10% solution.
\n" ); document.write( "1.\"A%2BB=54\"
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\n" ); document.write( "2.\"100A%2B10B=20%2854%29\"
\n" ); document.write( "\"10A%2BB=108\"
\n" ); document.write( "Subtract eq. 1 from eq. 2,
\n" ); document.write( "\"10A%2BB-A-B=108-54\"
\n" ); document.write( "\"9A=54\"
\n" ); document.write( "\"highlight%28A=6%29\"liters
\n" ); document.write( "Then from eq. 1,
\n" ); document.write( "\"highlight%28B=48%29\"liters
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