document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1122393>Question 1122393</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Rui Feng and Jun wei represent their class in a 10 Km race. They started running at the same speed of x km/h .After 2Km , Rui Feng increased his speed by 1 Km/h and ran the remaining distance at a constant speed of (X=1) Km/h . Jun wei maintained his speed of X Km/h throughout the race.<BR>\n" );
document.write( "1) Write down an expression in terms of X for the time taken by Rui Feng to complete the race.<BR>\n" );
document.write( "2) Given that Rui Feng completed the race 40 Minutes earlier than Jun wei , formulate an equation in x and show taht it reduce to x^2+x-12=0.<BR>\n" );
document.write( "3) Find the time taken by Rui Fng to complete the race, giving your answer in hours and minutes. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #738517 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=738517\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "1.  <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE t_R(x)\ =\ \frac{2}{x}\ +\ \frac{8}{x\ +\ 1}\">\r<BR>\n" );
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document.write( "2.  <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \frac{2}{x}\ +\ \frac{8}{x\ +\ 1}\ +\ \frac{2}{3}\ =\ \frac{10}{x}\">\r<BR>\n" );
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document.write( "Note that 40 minutes is <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \frac{2}{3}\"> hour.  I'll let you do the reduction (hint, multiply through by <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE 3\(x^2\ +\ x\)\">) and the solution of part 3 yourself.<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" src=\"http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg\"><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \ \\r\"> </SPAN>\n" );
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