document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=293021>Question 293021</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The tires of a bicycle have radius 12 inches and are turning at the rate of 180 revolutions per minute. How far is the bicycle traveling in miles per hour? (Hint: 5280 ft=1mile) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #211529 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=211529\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">     The tires of a bicycle have radius 12 inches and are turning at the rate of 180 revolutions per minute. How far is the bicycle traveling in miles per hour? (Hint: 5280 ft=1mile)<BR>\n" );
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document.write( "To find out how far the bike travels on a single revolution we need to find the circumference:<BR>\n" );
document.write( "circumference = 2(pi)r = 2(3.14)(12) = 75.36 inches<BR>\n" );
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document.write( "So, if the wheels are turning at 180 revolutions per minute then:<BR>\n" );
document.write( "180 rev/1 minute * 73.36 inches/rev = 13564.8 inches per minute<BR>\n" );
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document.write( "Now we convert to mph:<BR>\n" );
document.write( "13564.8 inches/minute * 1ft/12inches * 1 mile/5280ft * 60 min/1 hour<BR>\n" );
document.write( "= 12.85 mph </SPAN>\n" );
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