document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1186710>Question 1186710</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 7.	Stations A and B are d meters apart, with station C exactly in the middle (d/2). A car goes from station A to station C at a speed of v1. From station C, it then proceeds to station B at constant speed of v2.<BR>\n" );
document.write( "a.	Determine the total time t,  for the trip. (Express your answer in terms of v1, v2 and d)<BR>\n" );
document.write( "b.	What is the total distance traveled for the entire trip? (Express your answers in terms of d)<BR>\n" );
document.write( "c.	What is the displacement for the entire trip?<BR>\n" );
document.write( "d.	What is the average speed of the car for the entire trip? (Express your answer in terms of v1 and v2 only)<BR>\n" );
document.write( "e.	What is the average velocity of the car for the entire trip?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #817771 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=817771\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7. Stations A and B are d meters apart, with station C exactly in the middle (d/2).<BR>\n" );
document.write( " A car goes from station A to station C at a speed of v1.<BR>\n" );
document.write( " From station C, it then proceeds to station B at constant speed of v2.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "a. Determine the total time t, for the trip. (Express your answer in terms of v1, v2 and d)<BR>\n" );
document.write( "t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.5d%2F%28v1%29 ALIGN=MIDDLE  ALT=\".5d%2F%28v1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.5d%2F%28v2%29 ALIGN=MIDDLE  ALT=\".5d%2F%28v2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "b. What is the total distance traveled for the entire trip? (Express your answers in terms of d)<BR>\n" );
document.write( "d = total dist (distance is given as d, why complicate it)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "c. What is the displacement for the entire trip?<BR>\n" );
document.write( "d = displacement from A to B<BR>\n" );
document.write( ":<BR>\n" );
document.write( "d. What is the average speed of the car for the entire trip? (Express your answer in terms of v1 and v2 only)<BR>\n" );
document.write( "let a = the average speed of the trip<BR>\n" );
document.write( "Another time equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.5d%2F%28v1%29 ALIGN=MIDDLE  ALT=\".5d%2F%28v1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.5d%2F%28v2%29 ALIGN=MIDDLE  ALT=\".5d%2F%28v2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2Fa ALIGN=MIDDLE  ALT=\"d%2Fa\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "get rid of the decimal, mult by 2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F%28v1%29 ALIGN=MIDDLE  ALT=\"d%2F%28v1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F%28v2%29 ALIGN=MIDDLE  ALT=\"d%2F%28v2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2d%2Fa ALIGN=MIDDLE  ALT=\"2d%2Fa\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "multiply equation by a*v1*v2, cancel denominators<BR>\n" );
document.write( "a(v2)d + a(v1)d = 2d*v1*v2<BR>\n" );
document.write( "simplify, divide eq by d<BR>\n" );
document.write( "a*v2 + a*v1 = 2*v1*v2<BR>\n" );
document.write( "a(v2+v1) = 2*v1*v2<BR>\n" );
document.write( "a = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2Av1%2Av2%29%2F%28%28v1%2Bv2%29%29 ALIGN=MIDDLE  ALT=\"%282%2Av1%2Av2%29%2F%28%28v1%2Bv2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the average speed of the trip<BR>\n" );
document.write( ":<BR>\n" );
document.write( "e. What is the average velocity of the car for the entire trip?<BR>\n" );
document.write( "The same </SPAN>\n" );
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