document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=721995>Question 721995</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a bakery delivery truck leaves the bakery at 5:00am each morning on its 144 mile route.one day the driver gets a late start and does not leve the bakery until 5:20am. to finish her route on time the driver drives 4 miles per hour faster than usual.at what speed does she usually drive ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #442581 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=442581\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> usual speed be x\r<BR>\n" );
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document.write( " today's speed = x+4\r<BR>\n" );
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document.write( "difference in time = 1/3 hours ( 20 min)\r<BR>\n" );
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document.write( "Usual time - today's time = 1/3\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=144%2Fx+-+144%2F%28x%2B4%29+=+1%2F3 ALIGN=MIDDLE  ALT=\"144%2Fx+-+144%2F%28x%2B4%29+=+1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "multiply equation by 3x(x+4)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=144%2A3%28x%2B4%29-144%2A3%2Ax=+x%28x%2B4%29 ALIGN=MIDDLE  ALT=\"144%2A3%28x%2B4%29-144%2A3%2Ax=+x%28x%2B4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "432x+1728-432x=x^2+4x\r<BR>\n" );
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document.write( "x^2+4x-1728=0\r<BR>\n" );
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document.write( "solve this you will get the usual speed which is 39.62 \r<BR>\n" );
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document.write( " </SPAN>\n" );
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