document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=519224>Question 519224</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, I am trying to complete a practice test for my Algebra class but I need help solving the following problem:\r<BR>\n" );
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document.write( "How much water must be evaporated from 64 oz of a 10% salt solution to make a 2% salt solution?\r<BR>\n" );
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document.write( "If possible, could you also show me how you got the answer.\r<BR>\n" );
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document.write( "Thank you.\r<BR>\n" );
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document.write( "Lia M. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #345453 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=345453\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Firstly if you evaporate 10% solution the concentration will increase. It wont decrease.\r<BR>\n" );
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document.write( "The other way is possible\r<BR>\n" );
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document.write( "initial conc 2 % final 10%\r<BR>\n" );
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document.write( "water to be evaporated be x <BR>\n" );
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document.write( "when x evaporates there is 64 - x left,<BR>\n" );
document.write( "which has 90% water\r<BR>\n" );
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document.write( "2% of 64 = 1.28 oz is salt,<BR>\n" );
document.write( "64 - 1.28 = 62.72oz is water.<BR>\n" );
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document.write( "62.72 - x = 0.9 (64 - x)<BR>\n" );
document.write( " 62.72 - x = 57.6 - 0.90x<BR>\n" );
document.write( " -0.1x = -5.12<BR>\n" );
document.write( " x = 51.2 oz of water\r<BR>\n" );
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document.write( "m.ananth@hotmail.ca </SPAN>\n" );
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