document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=911750>Question 911750</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In Linear Equation Homework:<BR>\n" );
document.write( "\"Matt loves biking. He bikes uphill at 4 mph, downhill at 6 mph, and manages to cover 18 miles in 4 hours. How many miles did he bike downhill?\"<BR>\n" );
document.write( " I normally have problems with speed, distance and time. I thought maybe 18/4= something. I don't know what to do with the 4 mph and 6 mph. I know I ought to add them or something similar, but I can't decide about the mph part. Does the unit cause the question to differ? I simply can't put one end with the other. <BR>\n" );
document.write( "Thanks.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #553331 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39630)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=553331\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Being a travel problem with simple rates and distance,<BR>\n" );
document.write( "RT=D uniform rates rule for travel, RATE, TIME, DISTANCE.\r<BR>\n" );
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document.write( "4 mph uphill and 6 mph downhill.<BR>\n" );
document.write( "18 miles in 4 hours.\r<BR>\n" );
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document.write( "Some thinking...\r<BR>\n" );
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document.write( "Nothing comes into mind easily.  Try making a table of data.\r<BR>\n" );
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document.write( "______________rate___________time__________distance<BR>\n" );
document.write( "UPHILL________4_______________x<BR>\n" );
document.write( "DOWNHILL______6_______________y\r<BR>\n" );
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document.write( "Notice the assigning of variables for times.\r<BR>\n" );
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document.write( "Use RT=D idea to put in expressions for distances.\r<BR>\n" );
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document.write( "______________rate___________time__________distance<BR>\n" );
document.write( "UPHILL________4_______________x____________4x<BR>\n" );
document.write( "DOWNHILL______6_______________y____________6y\r<BR>\n" );
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document.write( "You were given the total time and total distance.\r<BR>\n" );
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document.write( "______________rate___________time__________distance<BR>\n" );
document.write( "UPHILL________4_______________x____________4x<BR>\n" );
document.write( "DOWNHILL______6_______________y____________6y<BR>\n" );
document.write( "Totals________________________4____________18\r<BR>\n" );
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document.write( "You may be able to now see what next to do.  Tell me if you still have trouble continuing from this data table.<BR>\n" );
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