document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=936885>Question 936885</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi is it possible to have the formula to work out the following\r<BR>\n" );
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document.write( "John drives from town A to town B at 90kmh for T Hours<BR>\n" );
document.write( "Jenny drives the same journey at 70kmh. she travels for 1 hour longer than John\r<BR>\n" );
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document.write( "How long did John drive for.<BR>\n" );
document.write( "Assume constant speeds\r<BR>\n" );
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document.write( "I found the answer by drawing it out, which is 3.5 hours assuming I am correct, but there must be a mathematical formula for doing this correctly </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #570339 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=570339\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> John drives from town A to town B at 90kmh for T Hours<BR>\n" );
document.write( "Jenny drives the same journey at 70kmh. she travels for 1 hour longer than John\r<BR>\n" );
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document.write( "How long did John drive for.<BR>\n" );
document.write( "Assume constant speeds\r<BR>\n" );
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document.write( "The distance from A to B is 90T\r<BR>\n" );
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document.write( "Jenny time = 90 T/70\r<BR>\n" );
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document.write( "Jenny's time - john's time = 1<BR>\n" );
document.write( "t=d/r\r<BR>\n" );
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document.write( "90T/70 -T = 1\r<BR>\n" );
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document.write( "90T-70T =70\r<BR>\n" );
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document.write( "20T=70<BR>\n" );
document.write( "T= 70/20<BR>\n" );
document.write( "T= 7/2\r<BR>\n" );
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document.write( "T=3.5 hours\r<BR>\n" );
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document.write( " </SPAN>\n" );
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