document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1186711>Question 1186711</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 8.	You jog at 9.1 km/h for 5.0 km, then you jump into a car and drive an additional 13 km. With what average speed must you drive your car if your average speed for the entire 18 km is to be 25 km/h? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #817677 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=817677\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 8. You jog at 9.1 km/h for 5.0 km, then you jump into a car and drive an additional 13 km.<BR>\n" );
document.write( "With what average speed must you drive your car if your average speed for the entire 18 km is to be 25 km/h?<BR>\n" );
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document.write( "let s = average speed in the car<BR>\n" );
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document.write( "Write a time equation, time = dist/speed<BR>\n" );
document.write( "bike time + car time = total time<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F9.1 ALIGN=MIDDLE  ALT=\"5%2F9.1\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13%2Fs ALIGN=MIDDLE  ALT=\"13%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2F25 ALIGN=MIDDLE  ALT=\"18%2F25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F9.1 ALIGN=MIDDLE  ALT=\"5%2F9.1\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13%2Fs ALIGN=MIDDLE  ALT=\"13%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = .72<BR>\n" );
document.write( "multiply by 9.1s, cancel denominators<BR>\n" );
document.write( "5s + 9.1(13) = 9.1s(.72)<BR>\n" );
document.write( "5s + 118.43 = 6.552s<BR>\n" );
document.write( "118.43 = 6.552s - 5s<BR>\n" );
document.write( "118.43 = 1.552s<BR>\n" );
document.write( "s = 118.43/1.552<BR>\n" );
document.write( "s = 76.3  km/hr\r<BR>\n" );
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document.write( " </SPAN>\n" );
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