document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=820344>Question 820344</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist mixes a 10% solution with a 50% acid solution to form 400ml of a 40% solution. How much of each solution should be used in the mixture? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #493492 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=493492\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> u = volume of the 10% solution<BR>\n" );
document.write( "v = volume of the 50% solution\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2810u%2B50v%29%2F%28400%29=40 ALIGN=MIDDLE  ALT=\"%2810u%2B50v%29%2F%28400%29=40\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u%2Bv=400 ALIGN=MIDDLE  ALT=\"u%2Bv=400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solve for u and v.\r<BR>\n" );
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document.write( "First simplify the rational equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%28u%2B5v%29=16000 ALIGN=MIDDLE  ALT=\"10%28u%2B5v%29=16000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28u%2B5v=1600%29 ALIGN=MIDDLE  ALT=\"highlight_green%28u%2B5v=1600%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Next, for convenience, subtract the \"400\" equation from this simplified \"1600\" equation and solve for v; and then use either equation to finish solving for the value of u. </SPAN>\n" );
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