document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1077070>Question 1077070</A>: <I><SPAN STYLE=\"word-break: break-all;\"> CAR A TRAVELING AT 35 MILES PER HOUR. CAR B IS 200 FEET BEHIND CAR A. AT WHAT SPEED MUST CAR B TRAVEL TO CATCH UP TO CAR A?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #691631 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=691631\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If car B travels at <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+35+ ALIGN=MIDDLE  ALT=\"+35+\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi/hr, it will never catch up<BR>\n" );
document.write( "to car A -it will always be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+200+ ALIGN=MIDDLE  ALT=\"+200+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ft behind, so any<BR>\n" );
document.write( "speed greater than <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+35+ ALIGN=MIDDLE  ALT=\"+35+\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi/hr will allow it to catch up<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "Suppose B's speed  = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+45+ ALIGN=MIDDLE  ALT=\"+45+\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi/hr<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+ ALIGN=MIDDLE  ALT=\"+d+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = distance that B travels until it catches A<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time in hrs for B to catch A<BR>\n" );
document.write( "Convert <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+200+ ALIGN=MIDDLE  ALT=\"+200+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ft to miles: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+200%2F5280+ ALIGN=MIDDLE  ALT=\"+200%2F5280+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Equation for A:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+-+200%2F5280+=+35t+ ALIGN=MIDDLE  ALT=\"+d+-+200%2F5280+=+35t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Equation for B:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+45t+ ALIGN=MIDDLE  ALT=\"+d+=+45t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "Plug (2) into (1)<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+-+200%2F5280+=+35t+ ALIGN=MIDDLE  ALT=\"+d+-+200%2F5280+=+35t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+45t+-+200%2F5280+=+35t+ ALIGN=MIDDLE  ALT=\"+45t+-+200%2F5280+=+35t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10t+=+200%2F5280+ ALIGN=MIDDLE  ALT=\"+10t+=+200%2F5280+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+20%2F5280+ ALIGN=MIDDLE  ALT=\"+t+=+20%2F5280+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+.003788+ ALIGN=MIDDLE  ALT=\"+t+=+.003788+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "Convert hrs to sec<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.003788%2A3600+=+13.64+ ALIGN=MIDDLE  ALT=\"+.003788%2A3600+=+13.64+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "B will catch A in 13.64 sec<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "Plug back into (2) to find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+ ALIGN=MIDDLE  ALT=\"+d+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Hope this helps<BR>\n" );
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