document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=80653>Question 80653</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 3.	Steve traveled 600 miles at a certain speed. Had he gone 20mph faster, the trip would have taken 1 hour less. Find the speed of his vehicle.\r<BR>\n" );
document.write( "\n" );
document.write( "y=time<BR>\n" );
document.write( "xy=600<BR>\n" );
document.write( "(x+20)(y-1)=600\r<BR>\n" );
document.write( "\n" );
document.write( "Now what do I do? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #57870 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=57870\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is the way I do it<BR>\n" );
document.write( "d = distance<BR>\n" );
document.write( "s = speed<BR>\n" );
document.write( "t = time<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600+%2F+s+=+t ALIGN=MIDDLE  ALT=\"600+%2F+s+=+t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600+%2F+%28s%2B20%29+=+t+-+1 ALIGN=MIDDLE  ALT=\"600+%2F+%28s%2B20%29+=+t+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "substitute<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600+%2F+%28s%2B20%29+=+600%2Fs+-+1 ALIGN=MIDDLE  ALT=\"600+%2F+%28s%2B20%29+=+600%2Fs+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600%2F%28s%2B20%29+-+600%2Fs+=+-1 ALIGN=MIDDLE  ALT=\"600%2F%28s%2B20%29+-+600%2Fs+=+-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600%281%2F%28s%2B20%29+-+1%2Fs%29+=+-1 ALIGN=MIDDLE  ALT=\"600%281%2F%28s%2B20%29+-+1%2Fs%29+=+-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F%28s%2B20%29+-+1%2Fs+=+-600 ALIGN=MIDDLE  ALT=\"1%2F%28s%2B20%29+-+1%2Fs+=+-600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Fs+-+1%2F%28s%2B20%29+=+600 ALIGN=MIDDLE  ALT=\"1%2Fs+-+1%2F%28s%2B20%29+=+600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "the common denominator is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s%28s%2B20%29 ALIGN=MIDDLE  ALT=\"s%28s%2B20%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28s+%2B+20+-s%29+%2F+s%28s%2B20%29+=+600 ALIGN=MIDDLE  ALT=\"%28s+%2B+20+-s%29+%2F+s%28s%2B20%29+=+600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s%28s%2B20%29+=+12000 ALIGN=MIDDLE  ALT=\"s%28s%2B20%29+=+12000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s%5E2+%2B+20s+-+12000+=+0 ALIGN=MIDDLE  ALT=\"s%5E2+%2B+20s+-+12000+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"s+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+=+%28-20+%2B-+sqrt%28+20%5E2-4%2A1%2A%28-12000%29+%29%29%2F%282%2A1%29 ALIGN=MIDDLE  ALT=\"s+=+%28-20+%2B-+sqrt%28+20%5E2-4%2A1%2A%28-12000%29+%29%29%2F%282%2A1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+=+%28-20+%2B-+sqrt%28400+%2B+48000%29%29+%2F+2 ALIGN=MIDDLE  ALT=\"s+=+%28-20+%2B-+sqrt%28400+%2B+48000%29%29+%2F+2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+=+%28-20+%2B-+220%29+%2F+2 ALIGN=MIDDLE  ALT=\"s+=+%28-20+%2B-+220%29+%2F+2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+=+100 ALIGN=MIDDLE  ALT=\"s+=+100\"   DISABLED_style= \"max-width:90%; height:auto;\" > (reject the negative answer)<BR>\n" );
document.write( "check the answer<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600+%2F+s+=+t ALIGN=MIDDLE  ALT=\"600+%2F+s+=+t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600+%2F+%28s%2B20%29+=+t+-+1 ALIGN=MIDDLE  ALT=\"600+%2F+%28s%2B20%29+=+t+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600%2F100+=+6 ALIGN=MIDDLE  ALT=\"600%2F100+=+6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600+%2F+120+=+6+-+1 ALIGN=MIDDLE  ALT=\"600+%2F+120+=+6+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5+=+5 ALIGN=MIDDLE  ALT=\"5+=+5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );