document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=522890>Question 522890</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I don't know how to figure this out.  \"My little brother left 2 minutes ago on his bike to ride with his friends to the cemetery.  If he pedals at 5 mph to the cemetery, which is 1 mile from here, and I go the back way (2.5 miles) so he doesn't see the car, how fast do I have to drive Mom's car to get there at least a full minute ahead of him so I can hide and scare him?\r<BR>\n" );
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document.write( "I know the brother needs 12 minutes to go a mile, and he left 2 minutes ago, so he has 10 minutes to go.<BR>\n" );
document.write( "I know the car driver needs to be there in 9 minutes.  That makes 3.6 minutes a mile.  What do I do from here?\r<BR>\n" );
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document.write( "Thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #347067 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=347067\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> My little brother left 2 minutes ago on his bike to ride with his friends to the cemetery. If he pedals at 5 mph to the cemetery, which is 1 mile from here, and I go the back way (2.5 miles) so he doesn't see the car, how fast do I have to drive Mom's car to get there at least a full minute ahead of him so I can hide and scare him? <BR>\n" );
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document.write( "Brother DATA:<BR>\n" );
document.write( "rate = 5 mph ; distance = 1 miles ; time = d/r = 1/5 = 12 minutes<BR>\n" );
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document.write( "You DATA:<BR>\n" );
document.write( "distance = 2.5 miles ; time = 11 minutes ; rate = d/t = 2.5/11 miles/min<BR>\n" );
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document.write( "11 min = 11/60 hr = 0.1833 hr<BR>\n" );
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document.write( "2.5/11 (miles/min) = 2.5/0.1833 = 13.64 miles/hr<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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