document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=342339>Question 342339</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ava rode her bike from her house to her friends house averaging 16 km per hour. It turned dark so her friend drove her home at a rate of 80 km per hour. If Ava's  total traveling time was 3 hours, how far away did her friend live?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #245032 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=245032\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ava rode her bike from her house to her friends house averaging 16 km per hour. It turned dark so her friend drove her home at a rate of 80 km per hour. If Ava's  total traveling time was 3 hours, how far away did her friend live?\r<BR>\n" );
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document.write( "For this problem, we need to reealize that since the total time for the roundtrip was 3 hours, then time to travel to her friend's house, plus time to return home equals 3. Using D as the distance, the speed to the friend's house, and the speed on the return trip, this is expressed as: \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D%2F16+%2B+D%2F80+=+3 ALIGN=MIDDLE  ALT=\"D%2F16+%2B+D%2F80+=+3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Multiplying the equation by its LCD, 80, we get:\r<BR>\n" );
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document.write( "5D + D = 240\r<BR>\n" );
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document.write( "6D = 240\r<BR>\n" );
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document.write( "D, or distance to friend's house = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=240%2F6 ALIGN=MIDDLE  ALT=\"240%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2840%29 ALIGN=MIDDLE  ALT=\"highlight_green%2840%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > kilometers. </SPAN>\n" );
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