document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=569224>Question 569224</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this question: A student drives the 100 mi trip back to campus after spring break and travels with an average speed of 54 mi/h for 1 hour and 30 minutes. There are three parts the first part asks for the distance traveled during this time in miles. The second one says that the traffic get heavier on the last part of the trip so it takes another half-hour and it wants to know the average speed of this leg of the trip (mi/h. The final part asks for the final average speed for the total trip (mi/h). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #367318 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=367318\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A student drives the 100 mi trip back to campus after spring break and travels with an average speed of 54 mi/h for 1 hour and 30 minutes.<BR>\n" );
document.write( " There are three parts<BR>\n" );
document.write( ": <BR>\n" );
document.write( "  the first part asks for the distance traveled during this time in miles.<BR>\n" );
document.write( "   Dist = speed * time<BR>\n" );
document.write( "   d = 54(1.5)<BR>\n" );
document.write( "   d = 81 mi<BR>\n" );
document.write( ";<BR>\n" );
document.write( "  The second one says that the traffic get heavier on  the last part of the trip <BR>\n" );
document.write( "so it takes another half-hour and it wants to know the average speed of this leg of the trip (mi/h.<BR>\n" );
document.write( "  Speed = dist/time<BR>\n" );
document.write( "  time = .5 hr; dist: 100 - 81 = 19 mi<BR>\n" );
document.write( "  S = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=19%2F.5%29 ALIGN=MIDDLE  ALT=\"19%2F.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "  S = 38 mph speed on the last part of the trip<BR>\n" );
document.write( ":<BR>\n" );
document.write( " The final part asks for the final average speed for the total trip (mi/h).<BR>\n" );
document.write( "Let a = average speed,  total time: 1.5 + .5 = 2hrs<BR>\n" );
document.write( "Write a time equation: time = dist/speed<BR>\n" );
document.write( "1.5 + .5 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=100%2Fa ALIGN=MIDDLE  ALT=\"100%2Fa\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2.0 = 100/a<BR>\n" );
document.write( "2a = 100<BR>\n" );
document.write( "a = 100/2<BR>\n" );
document.write( "a = 50 mph was the average speed for the whole trip </SPAN>\n" );
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