document.write( "Question 67234This question is from textbook Advanced mathematics
\n" ); document.write( ": One thousand liters of a solution was available, but the solution was 90% alcohol. Jim needed a solution which was 80%percent alcohol. How many liters of alcohol had to be extracted so that the solution would be 80% alcohol? \n" ); document.write( "
Algebra.Com's Answer #47792 by Nate(3500)\"\" \"About 
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(1000(90%) - x(100%))/(1000 - x) = 80%
\n" ); document.write( "1000(0.9) - x(1.0) = (1000 - x)(0.8)
\n" ); document.write( "900 - x = 800 - 0.8x
\n" ); document.write( "100 = 0.2x
\n" ); document.write( "500 = x
\n" ); document.write( "500 liters of pure alcohol had to be taken out.
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