document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=152596>Question 152596</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mitchel drove to a friend at a rate of 40 miles/hr. He returned by the same route at a rate of 45 miles/hr.The driving time for the round trip was 4 hours.What is the distance Mitchel travelled ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #112161 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=112161\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can use the distance formula: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+r%2At ALIGN=MIDDLE  ALT=\"d+=+r%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" > where: d = distance, r = rate (speed), and t = time of travel.<BR>\n" );
document.write( "For the outbound trip:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B1%5D+=+r%5B1%5D%2At%5B1%5D ALIGN=MIDDLE  ALT=\"d%5B1%5D+=+r%5B1%5D%2At%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "For the return trip:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B2%5D+=+r%5B2%5D%2At%5B2%5D ALIGN=MIDDLE  ALT=\"d%5B2%5D+=+r%5B2%5D%2At%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "In this problem, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B1%5D+=+d%5B2%5D ALIGN=MIDDLE  ALT=\"d%5B1%5D+=+d%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D%2Bt%5B2%5D+=+4 ALIGN=MIDDLE  ALT=\"t%5B1%5D%2Bt%5B2%5D+=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so you can write:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B1%5D%2At%5B1%5D+=+r%5B2%5D%2At%5B2%5D ALIGN=MIDDLE  ALT=\"r%5B1%5D%2At%5B1%5D+=+r%5B2%5D%2At%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B1%5D+=+40 ALIGN=MIDDLE  ALT=\"r%5B1%5D+=+40\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B2%5D+=+45 ALIGN=MIDDLE  ALT=\"r%5B2%5D+=+45\"   DISABLED_style= \"max-width:90%; height:auto;\" > These are given, so...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2At%5B1%5D+=+45%2At%5B2%5D ALIGN=MIDDLE  ALT=\"40%2At%5B1%5D+=+45%2At%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B2%5D+=+4-t%7B1%5D ALIGN=MIDDLE  ALT=\"t%5B2%5D+=+4-t%7B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2At%5B1%5D+=+45%2A%284-t%5B1%5D%29 ALIGN=MIDDLE  ALT=\"40%2At%5B1%5D+=+45%2A%284-t%5B1%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Simplify and solvefor <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D ALIGN=MIDDLE  ALT=\"t%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2At%5B1%5D+=+180-45%2At%5B1%5D ALIGN=MIDDLE  ALT=\"40%2At%5B1%5D+=+180-45%2At%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > Add <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=45%2At%5B1%5D ALIGN=MIDDLE  ALT=\"45%2At%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > to both sides.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=85%2At%5B1%5D+=+180 ALIGN=MIDDLE  ALT=\"85%2At%5B1%5D+=+180\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by 85.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+=+2.12 ALIGN=MIDDLE  ALT=\"t%5B1%5D+=+2.12\"   DISABLED_style= \"max-width:90%; height:auto;\" >hours.<BR>\n" );
document.write( "Now you can calculate the one-way distance, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B1%5D ALIGN=MIDDLE  ALT=\"d%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B1%5D+=+40%2At%5B1%5D ALIGN=MIDDLE  ALT=\"d%5B1%5D+=+40%2At%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B1%5D+=+40%2A2.12 ALIGN=MIDDLE  ALT=\"d%5B1%5D+=+40%2A2.12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B1%5D+=+84.8 ALIGN=MIDDLE  ALT=\"d%5B1%5D+=+84.8\"   DISABLED_style= \"max-width:90%; height:auto;\" >miles.<BR>\n" );
document.write( "This should be equal to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B2%5D ALIGN=MIDDLE  ALT=\"d%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >...let's see if it is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B2%5D+=+r%5B2%5D%2At%5B2%5D ALIGN=MIDDLE  ALT=\"d%5B2%5D+=+r%5B2%5D%2At%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B2%5D+=+45 ALIGN=MIDDLE  ALT=\"r%5B2%5D+=+45\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B2%5D+=+4-2.12 ALIGN=MIDDLE  ALT=\"t%5B2%5D+=+4-2.12\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.88 ALIGN=MIDDLE  ALT=\"1.88\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B2%5D+=+45%2A1.88 ALIGN=MIDDLE  ALT=\"d%5B2%5D+=+45%2A1.88\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B2%5D+=+84.6 ALIGN=MIDDLE  ALT=\"d%5B2%5D+=+84.6\"   DISABLED_style= \"max-width:90%; height:auto;\" >miles.<BR>\n" );
document.write( "Michael travelled <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5B1%5D%2Bd%5B2%5D+=+84.8%2B84.6 ALIGN=MIDDLE  ALT=\"d%5B1%5D%2Bd%5B2%5D+=+84.8%2B84.6\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=169.4 ALIGN=MIDDLE  ALT=\"169.4\"   DISABLED_style= \"max-width:90%; height:auto;\" >miles. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );