document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=781445>Question 781445</A>: <I><SPAN STYLE=\"word-break: break-all;\">  i need a formula to calculate how long a trip will take when traveling at an average speed of 50 kilometers per hour and add 1 minute for every traffic light on the way.  The distance in kilometers and the number of traffic lights must be entered.Calculate time in hours and minutes  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #475912 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39627)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=475912\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your formula would be the sum of two parts.  One part is simply r*t=d and the other part is a function of how many traffic lights.\r<BR>\n" );
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document.write( "Using simple rate equation, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B0%5D=d%2Fr ALIGN=MIDDLE  ALT=\"t%5B0%5D=d%2Fr\"   DISABLED_style= \"max-width:90%; height:auto;\" > and t is in hours including fractions of hour.<BR>\n" );
document.write( "Using traffic signal specification, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Bs%5D=p%2F60 ALIGN=MIDDLE  ALT=\"t%5Bs%5D=p%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" > where <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p=CountOfTrafficSignals ALIGN=MIDDLE  ALT=\"p=CountOfTrafficSignals\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Trip time in HOURS is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=t%5B0%5D%2Bt%5Bs%5D ALIGN=MIDDLE  ALT=\"t=t%5B0%5D%2Bt%5Bs%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28t=d%2Fr%2Bp%2F60%29 ALIGN=MIDDLE  ALT=\"highlight%28t=d%2Fr%2Bp%2F60%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > HOURS.<BR>\n" );
document.write( "You assign r=50 as a constant.  You would enter values expected for variables d and p for the expected trip.  \r<BR>\n" );
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document.write( "I leave for you how to work through changing t into mixed units of hours and minutes. </SPAN>\n" );
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