document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1026187>Question 1026187</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Moving walkways are common in airports. Drenell conducts an experiment in which he walks with a 126-foot walkway and then against the walkway. It takes Drenell 18 seconds to walk the 126-foot walkway going with the walkway and it takes him 63 seconds to walk the walkway going against the walkway. What is Drenell's normal walking speed? \r<BR>\n" );
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document.write( "Please help me with equation! Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #641442 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=641442\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Moving walkways are common in airports. Drenell conducts an experiment in which he walks with a 126-foot walkway and then against the walkway. <BR>\n" );
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document.write( "It takes Drenell 18 seconds to walk the 126-foot walkway going with the walkway and it takes him 63 seconds to walk the walkway going against the walkway. What is Drenell's normal walking speed? <BR>\n" );
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document.write( "With the walkway DATA:<BR>\n" );
document.write( "time = 18 sec ; dist = 126 ft ; rate = 126/18 = 7 ft/sec<BR>\n" );
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document.write( "Against the walkway DATA:<BR>\n" );
document.write( "time = 63 sec ; dist = 126 ft ; rate = 126/63 = 2 ft/sec<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "w = his walking speed ; s = speed of the walkalator<BR>\n" );
document.write( "w + s = 7 ft/sec<BR>\n" );
document.write( "w - s = 2 ft/sec<BR>\n" );
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document.write( "Add and solve for \"w\"::<BR>\n" );
document.write( "2w = 9 <BR>\n" );
document.write( "walking speed = 4.5 ft/sec<BR>\n" );
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document.write( "Solve for \"s\"::<BR>\n" );
document.write( "w+s = 7 ft sec<BR>\n" );
document.write( "4.5 + s = 7<BR>\n" );
document.write( "s = 2.5 ft/sec (speed of the walkalator<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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