document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1143482>Question 1143482</A>: <I><SPAN STYLE=\"word-break: break-all;\"> James can jog twice as fast as he can walk. He was able to jog the first 9 miles to his grandmother’s house, but then he tired and walked the remaining 1.5 miles. If the total trip took 2 hours, then what was his average jogging speed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #764290 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=764290\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> James can jog twice as fast as he can walk.<BR>\n" );
document.write( " He was able to jog the first 9 miles to his grandmother’s house, but then he tired and walked the remaining 1.5 miles.<BR>\n" );
document.write( " If the total trip took 2 hours, then what was his average jogging speed?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "let j = his jogging speed<BR>\n" );
document.write( "he walks half as fast, therefore<BR>\n" );
document.write( ".5j = his walking speed <BR>\n" );
document.write( ":<BR>\n" );
document.write( "write a time equation, time = dist/speed<BR>\n" );
document.write( "jog time + walk time = 2 hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2Fj ALIGN=MIDDLE  ALT=\"9%2Fj\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.5%2F%28.5j%29 ALIGN=MIDDLE  ALT=\"1.5%2F%28.5j%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 2<BR>\n" );
document.write( "multiply by .5j<BR>\n" );
document.write( ".5(9) + (1.5) = .5j(2)<BR>\n" );
document.write( "4.5 + .1.5 = j<BR>\n" );
document.write( "6 = j<BR>\n" );
document.write( "j = 6 mph is the jogging speed<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check, find the actual time of each<BR>\n" );
document.write( "9/6 = 1.5 hrs<BR>\n" );
document.write( "1.5/3 = .5 hrs<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "total time 2 hrs<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );