document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=895513>Question 895513</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Starting at home, Emily traveled uphill to the grocery store for 20 minutes at just 6 mph. She then traveled back home along the same path downhill at a speed of 12 mph.\r<BR>\n" );
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document.write( "What is her average speed for the entire trip from home to the grocery store and back? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #542886 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=542886\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Average speed is always:<BR>\n" );
document.write( "( total distance traveled ) / ( total time spent traveling )<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+ ALIGN=MIDDLE  ALT=\"+d+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the one-way distance to the store<BR>\n" );
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document.write( "From home to store:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+6%2A%28+20%2F60+%29+ ALIGN=MIDDLE  ALT=\"+d+=+6%2A%28+20%2F60+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+6%2A%28+1%2F3+%29+ ALIGN=MIDDLE  ALT=\"+d+=+6%2A%28+1%2F3+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+2+ ALIGN=MIDDLE  ALT=\"+d+=+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi<BR>\n" );
document.write( "( note that I converted minutes to hours )<BR>\n" );
document.write( "------------------------------------<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time in hours to get home<BR>\n" );
document.write( "From store to home:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+12t+ ALIGN=MIDDLE  ALT=\"+d+=+12t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2+=+12t+ ALIGN=MIDDLE  ALT=\"+2+=+12t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+1%2F6+ ALIGN=MIDDLE  ALT=\"+t+=+1%2F6+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hr<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "Her average speed is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+2+%2B+2+%29+%2F+%28+1%2F3+%2B+1%2F6+%29+ ALIGN=MIDDLE  ALT=\"+%28+2+%2B+2+%29+%2F+%28+1%2F3+%2B+1%2F6+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4+%2F+%28+2%2F6+%2B+1%2F6+%29+ ALIGN=MIDDLE  ALT=\"+4+%2F+%28+2%2F6+%2B+1%2F6+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4+%2F+%28+3%2F6+%29+ ALIGN=MIDDLE  ALT=\"+4+%2F+%28+3%2F6+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4+%2F+%28+1%2F2+%29+=+8+ ALIGN=MIDDLE  ALT=\"+4+%2F+%28+1%2F2+%29+=+8+\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi/hr\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );