document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=183983>Question 183983</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It takes Mary 30 minuites to walk uphill 1 Km from her home to school, but it takes her only 10 minuites to walk from school to home along the same route. What is her average speed, in Km/hr, for the round trip? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #138056 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=138056\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It takes Mary 30 minutes to walk uphill 1 Km from her home to school, but it<BR>\n" );
document.write( " takes her only 10 minutes to walk from school to home along the same route.<BR>\n" );
document.write( " What is her average speed, in Km/hr, for the round trip?<BR>\n" );
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document.write( "Round trip dist = 2 km<BR>\n" );
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document.write( "Change the times to hrs:<BR>\n" );
document.write( "30/60 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F6 ALIGN=MIDDLE  ALT=\"3%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > hr<BR>\n" );
document.write( "10/60 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F6 ALIGN=MIDDLE  ALT=\"1%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > hr<BR>\n" );
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document.write( "Total time = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F6 ALIGN=MIDDLE  ALT=\"4%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > hr<BR>\n" );
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document.write( "Speed = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dist%2Ftime ALIGN=MIDDLE  ALT=\"dist%2Ftime\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "When dividing, invert the dividing fraction and multiply:<BR>\n" );
document.write( "2 * <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2F4 ALIGN=MIDDLE  ALT=\"6%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2F4 ALIGN=MIDDLE  ALT=\"12%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 3 km/h is the average speed<BR>\n" );
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document.write( " </SPAN>\n" );
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