document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=81850>Question 81850</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A consultant traveled 10 hours to attend a meeting.  The return trip took only 9 hours because the speed was 7 moles per hour faster.  What was the consultant's speed each way?\r<BR>\n" );
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document.write( "Now, correct me if I am wrong, but wouldn't I also need a distance traveled in order to find the speed each way? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #58646 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=58646\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Knowing the distance is not necessary to solve this problem.<BR>\n" );
document.write( "Use the distance formula <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+rt ALIGN=MIDDLE  ALT=\"d+=+rt\"   DISABLED_style= \"max-width:90%; height:auto;\" >for each way.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+r%5B1%5Dt%5B1%5D ALIGN=MIDDLE  ALT=\"d+=+r%5B1%5Dt%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+r%5B2%5Dt%5B2%5D ALIGN=MIDDLE  ALT=\"d+=+r%5B2%5Dt%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > Where r is the rate (speed) and t is the time of travel.<BR>\n" );
document.write( "You know that the distance, d, is the same in both cases.<BR>\n" );
document.write( "You also know that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B2%5D=r%5B1%5D%2B7 ALIGN=MIDDLE  ALT=\"r%5B2%5D=r%5B1%5D%2B7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You know that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+=+10 ALIGN=MIDDLE  ALT=\"t%5B1%5D+=+10\"   DISABLED_style= \"max-width:90%; height:auto;\" > and<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B2%5D+=+9 ALIGN=MIDDLE  ALT=\"t%5B2%5D+=+9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Making the appropriate substitutions, you'll get:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+r%5B1%5D%2A10 ALIGN=MIDDLE  ALT=\"d+=+r%5B1%5D%2A10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+%28r%5B1%5D%2B7%29%2A9 ALIGN=MIDDLE  ALT=\"d+=+%28r%5B1%5D%2B7%29%2A9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Set these two equations equal to each other and solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B1%5D ALIGN=MIDDLE  ALT=\"r%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=r%5B1%5D%2A10+=+%28r%5B1%5D%2B7%29%2A9 ALIGN=MIDDLE  ALT=\"r%5B1%5D%2A10+=+%28r%5B1%5D%2B7%29%2A9\"   DISABLED_style= \"max-width:90%; height:auto;\" > Simplify.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10r%5B1%5D+=+9r%5B1%5D%2B63 ALIGN=MIDDLE  ALT=\"10r%5B1%5D+=+9r%5B1%5D%2B63\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9r%5B1%5D ALIGN=MIDDLE  ALT=\"9r%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > from both sides.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B1%5D+=+63 ALIGN=MIDDLE  ALT=\"r%5B1%5D+=+63\"   DISABLED_style= \"max-width:90%; height:auto;\" >mph<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B2%5D+=+r%5B1%5D%2B7 ALIGN=MIDDLE  ALT=\"r%5B2%5D+=+r%5B1%5D%2B7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B2%5D+=+63%2B7 ALIGN=MIDDLE  ALT=\"r%5B2%5D+=+63%2B7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B2%5D+=+70 ALIGN=MIDDLE  ALT=\"r%5B2%5D+=+70\"   DISABLED_style= \"max-width:90%; height:auto;\" >mph<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=63%2A10+=+630 ALIGN=MIDDLE  ALT=\"63%2A10+=+630\"   DISABLED_style= \"max-width:90%; height:auto;\" >miles. This is the distance one-way.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=70%2A9+=+630 ALIGN=MIDDLE  ALT=\"70%2A9+=+630\"   DISABLED_style= \"max-width:90%; height:auto;\" >miles.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );