document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=213074>Question 213074</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how much distilled water should be added to 100 ml of a highly concentrated 90% saline solution to reduce the concentration to 40%? what is the volume of the resulting mixture? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #160975 by </B><A HREF=/tutors/aboutme.mpl?userid=RAY100><B>RAY100(1637)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=RAY100><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=160975\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let  x =  water  added<BR>\n" );
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document.write( "x (0%) + 100ml * .9 = (100+x) * .4,,,,,salt  balance<BR>\n" );
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document.write( " 90 = 40 + .4x<BR>\n" );
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document.write( "-.4x = -50<BR>\n" );
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document.write( "x= 125 ml,,,,h2o  added<BR>\n" );
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document.write( "Total  volume  is  100 + 125  = 225  ml<BR>\n" );
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document.write( "check,,,,100*.9 = 225* .4 = 90,,,,,ok\r<BR>\n" );
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document.write( " </SPAN>\n" );
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