document.write( "Question 1155207: Six hundred liters of a solution was available, but the solution was 70% alcohol. Dan needed a solution of 40% alcohol. How many liters of alcohol had to be extracted so that the solution would be 40% alcohol? \n" ); document.write( "
Algebra.Com's Answer #777762 by ankor@dixie-net.com(22740)\"\" \"About 
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Six hundred liters of a solution was available, but the solution was 70% alcohol.
\n" ); document.write( " Dan needed a solution of 40% alcohol.
\n" ); document.write( " How many liters of alcohol had to be extracted so that the solution would be 40% alcohol?
\n" ); document.write( ":
\n" ); document.write( "Let x = amt of alcohol to removed
\n" ); document.write( ".7(600) - x = .4(600-x)
\n" ); document.write( "420 - x = 240 - .4x
\n" ); document.write( "420 - 240 = -.4x + x
\n" ); document.write( "180 = .6x
\n" ); document.write( "x = 180/.6
\n" ); document.write( "x = 300 liters of alcohol
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