document.write( "Question 371508: A dehydrated patient needs 6.8% saline unfortunately the hospital only has 2% and 8% bags how many liters of these solutions should be mixed together to yield 2 liters \n" ); document.write( "
Algebra.Com's Answer #264655 by Fombitz(32388)\"\" \"About 
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Let A be the amount of 2% solution, B the amount of 8% solution.
\n" ); document.write( "1.\"A%2BB=2\"
\n" ); document.write( ".
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\n" ); document.write( "\"2A%2B8B=6.8%282%29\"
\n" ); document.write( "2.\"A%2B4B=6.8\"
\n" ); document.write( "Subtract eq. 1 from eq. 2,
\n" ); document.write( "\"A%2B4B-A-B=6.8-2\"
\n" ); document.write( "\"3B=4.8\"
\n" ); document.write( "\"highlight%28B=1.6%29\"liters
\n" ); document.write( "From eq. 1,
\n" ); document.write( "\"A%2B1.6=2\"
\n" ); document.write( "\"highlight%28A=0.4%29\"liters
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