document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=601507>Question 601507</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If you are riding a bicycle with 27'' tires at a speed of 20 mph, how fast are the wheels rotating? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #379909 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=379909\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If you are riding a bicycle with 27'' tires at a speed of 20 mph, how fast are the wheels rotating?<BR>\n" );
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document.write( "20 mi/hr = 20*22/15 ft/sec = 88/3 ft/sec<BR>\n" );
document.write( "Each rev of the tire is 27*pi/12 ft = 2.25*pi ft/rev<BR>\n" );
document.write( "(88/3) ft/sec / 2.25 ft/rev = 88/(3*2.25) rev/sec<BR>\n" );
document.write( "= 88*60/6.75 rpm<BR>\n" );
document.write( "= 782.22 rpm<BR>\n" );
document.write( " </SPAN>\n" );
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