document.write( "Question 850342: I need help solving this word problem.\r
\n" ); document.write( "\n" ); document.write( "A chemist mixed 3 liters of 30% sulfuric acid with a sample of 80% sulfuric acid to obtain a sample of 60% sulfuric acid. How much of the sulfuric acid was used?
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Algebra.Com's Answer #512089 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Let \"+x+\" = liters of the 80% solution needed
\n" ); document.write( "\"+.8x+\" = liters of sulfuric acid in 80% solution
\n" ); document.write( "\"+.3%2A3+=+.9+\" liters of sulfuric acid in 30% solution
\n" ); document.write( "----------------------------------------------------------
\n" ); document.write( "\"+%28+.9+%2B+.8x+%29+%2F+%28+3+%2B+x+%29+=+.6+\"
\n" ); document.write( "\"+.9+%2B+.8x+=+.6%2A%28+3+%2B+x+%29+\"
\n" ); document.write( "\"+.9+%2B+.8x+=+1.8+%2B+.6x+\"
\n" ); document.write( "\"+.2x+=+.9+\"
\n" ); document.write( "\"+x+=+4.5+\"
\n" ); document.write( "4.5 liters of the 80% solution are needed
\n" ); document.write( "check:
\n" ); document.write( "\"+%28+.9+%2B+.8x+%29+%2F+%28+3+%2B+x+%29+=+.6+\"
\n" ); document.write( "\"+%28+.9+%2B+.8%2A4.5+%29+%2F+%28+3+%2B+4.5+%29+=+.6+\"
\n" ); document.write( "\"+%28+.9+%2B+3.6+%29+%2F+7.5+=+.6+\"
\n" ); document.write( "\"+4.5+=+.6%2A7.5+\"
\n" ); document.write( "\"+4.5+=+4.5+\"
\n" ); document.write( "OK
\n" ); document.write( "The problem is poorly stated. I'm not sure this is
\n" ); document.write( "what they want, but you can figure out anything about
\n" ); document.write( "the problem using what's here. Hope this helps\r
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