document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=169028>Question 169028</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two airplanes leave Toronto at the same time, one travelling west and the other east. Their average speeds differ by 5km/h. After 1 3/4 hours they were 980 km apart. Find the speed of each plane. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #124661 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=124661\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two airplanes leave Toronto at the same time, one travelling west and the other east. Their average speeds differ by 5km/h. After 1 3/4 hours they were 980 km apart. Find the speed of each plane.<BR>\n" );
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document.write( "Let x = speed of one plane<BR>\n" );
document.write( "then<BR>\n" );
document.write( "x+5 = speed of other plane<BR>\n" );
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document.write( "1 3/4 = 1.75 hours<BR>\n" );
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document.write( "1.75x + 1.75(x+5) = 980<BR>\n" );
document.write( "1.75x + 1.75x + 8.75 = 980<BR>\n" );
document.write( "1.75x + 1.75x = 971.25<BR>\n" );
document.write( "35x = 971.25<BR>\n" );
document.write( "x = 277.5 km/hr<BR>\n" );
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document.write( "solution:<BR>\n" );
document.write( "277.5 and 282.5 km/hr </SPAN>\n" );
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