document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=819020>Question 819020</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist has 100 liters of 30% sodium chloride solution. She intends to drain a certain number of liters and replace with a more concentrated solution.\r<BR>\n" );
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document.write( "a) How much of this solution should she drain and replace with 80% sodium chloride if she wants a 55% sodium chloride solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #492904 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=492904\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A chemist has 100 liters of 30% sodium chloride solution. She intends to drain a certain number of liters and replace with a more concentrated solution. <BR>\n" );
document.write( "a) How much of this solution should she drain and replace with 80% sodium chloride if she wants a 55% sodium chloride solution?<BR>\n" );
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document.write( "sc - sc + sc = sc<BR>\n" );
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document.write( "0.30*100 - 0.30x + 1*x = 0.80*100<BR>\n" );
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document.write( "Multiply thru by 100 to get::<BR>\n" );
document.write( "30*100 - 30x + 100x = 80*100<BR>\n" );
document.write( "70x = 50*100<BR>\n" );
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document.write( "x = 7.14 liters (amt of liquid to remove and replace.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============ </SPAN>\n" );
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