document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=512020>Question 512020</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Your car came equipped with 17 inch radius tires.  You upgrade to 20 inch wheels and tires.  Your speedometer was not adjusted.  When you think your speed is 60 mph, How fast are you really going?    \r<BR>\n" );
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document.write( "Figure the number of inches per revolution of the tire to the mph.  How many Revolutions would it take in one hour to cover 60 miles? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #342589 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=342589\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your car came equipped with 17 inch radius tires.<BR>\n" );
document.write( "You upgrade to 20 inch wheels and t<BR>\n" );
document.write( "When you think your speed is 60 mph, How fast are you really going?<BR>\n" );
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document.write( "The circumference is directly proportional to the diameter to the wheel<BR>\n" );
document.write( "Let s = speed with 20\" wheels<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=17%2F20 ALIGN=MIDDLE  ALT=\"17%2F20\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60%2Fs ALIGN=MIDDLE  ALT=\"60%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "17s = 20*60<BR>\n" );
document.write( "s = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1200%2F17 ALIGN=MIDDLE  ALT=\"1200%2F17\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "s = 70.6 mph<BR>\n" );
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document.write( "Figure the number of inches per revolution of the tire to the mph.<BR>\n" );
document.write( "c = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2Api ALIGN=MIDDLE  ALT=\"20%2Api\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "c = 62.832 inches per revolution<BR>\n" );
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document.write( "How many Revolutions would it take in one hour to cover 60 mile<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2860%2A5280%2A12%29%2F62.832 ALIGN=MIDDLE  ALT=\"%2860%2A5280%2A12%29%2F62.832\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 60,504.2 revolutions (with a 20\" wheel) </SPAN>\n" );
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