document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=314120>Question 314120</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A train that travels 100 kilometers in 4 hours is traveling at what average speed?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #224537 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=224537\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use the famous 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;\" >.  In this case, you have d= 100 km, and t= 4 hours.  So plug in what you know, and solve for the unknown, which in this case is rate, r.\r<BR>\n" );
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document.write( "d=rt<BR>\n" );
document.write( "100=r*4<BR>\n" );
document.write( "4r=100\r<BR>\n" );
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document.write( "Divide both sides by 4:<BR>\n" );
document.write( "r=25\r<BR>\n" );
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document.write( "Dr. Robert J. Rapalje, Retired<BR>\n" );
document.write( "Seminole State College of Florida<BR>\n" );
document.write( "Altamonte Springs Campus   </SPAN>\n" );
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