document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=152934>Question 152934</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a word problem.\r<BR>\n" );
document.write( "\n" );
document.write( "The distance from Philadelphia and Sea Isla City is 100 miles. A car was driven this distance using tires with a radius of 14 inches. How many revolutions of each tire occurred on the trip?\r<BR>\n" );
document.write( "\n" );
document.write( "I would like to learn how to break down the equation if I may.\r<BR>\n" );
document.write( "\n" );
document.write( "Many thanks!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #112420 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=112420\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> when a disc (tire) is rolling, the disc travels a distance of one circumference for each revolution\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "the circumference is 2*pi*r, in this case 28*pi inches\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "there are 12 inches in a foot and 5280 feet in a mile, so the trip distance (in inches) is 100*5280*12\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "so the number of revolutions is (100*5280*12)/(28*pi) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );