document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=763339>Question 763339</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tom and Gary are leaving the same town for a meeting in different cities. However, they have not quite finished discussing a business plan. Tom must leave 1 1/2 hours earlier then Gary to make his meeting. Tom heads east on a train at 55 miles per hour. Gary heads west on a train at 70 miles per hour. How long can they talk on their phones if the phones have a range of 276.25 miles? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #464730 by </B><A HREF=/tutors/aboutme.mpl?userid=ramkikk66><B>ramkikk66(644)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ramkikk66><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=464730\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Tom and Gary are leaving the same town for a meeting in different cities. However, they have not quite finished discussing a business plan. Tom must leave 1 1/2 hours earlier then Gary to make his meeting. Tom heads east on a train at 55 miles per hour. Gary heads west on a train at 70 miles per hour. How long can they talk on their phones if the phones have a range of 276.25 miles?\r<BR>\n" );
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document.write( "Answer:<BR>\n" );
document.write( "Tom travels for 1.5 hours before Gary starts. In that time he travels 55*1.5 = 82.5 miles\r<BR>\n" );
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document.write( "After that, since they travel in opposite directions, the distance between them increases by (55+70) = 125 miles every hour.\r<BR>\n" );
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document.write( "Let us say than can talk for x hours before they go out of range.\r<BR>\n" );
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document.write( "Since the initial gap between them is 82.5, and it increases by 125 every hour, we have the equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=82.5+%2B+125%2Ax+=+276.25 ALIGN=MIDDLE  ALT=\"82.5+%2B+125%2Ax+=+276.25\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=125%2Ax+=+193.75 ALIGN=MIDDLE  ALT=\"125%2Ax+=+193.75\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+193.75%2F125+=+1.55 ALIGN=MIDDLE  ALT=\"x+=+193.75%2F125+=+1.55\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So they can talk for another <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%281.55%29 ALIGN=MIDDLE  ALT=\"highlight%281.55%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours or 1 hour and 33 minutes.\r<BR>\n" );
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