document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=889903>Question 889903</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve this;<BR>\n" );
document.write( "A train travels 150 miles<BR>\n" );
document.write( "in the same time that a plane<BR>\n" );
document.write( "covers 400 miles.<BR>\n" );
document.write( "if the speed of the plane is 20mph <BR>\n" );
document.write( "less than three times the <BR>\n" );
document.write( "speed of the train;<BR>\n" );
document.write( "find both speeds? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #538542 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=538542\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A train travels 150 miles<BR>\n" );
document.write( "in the same time that a plane<BR>\n" );
document.write( "covers 400 miles.<BR>\n" );
document.write( "if the speed of the plane is 20mph <BR>\n" );
document.write( "less than three times the <BR>\n" );
document.write( "speed of the train;<BR>\n" );
document.write( "find both speeds?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=speed of train<BR>\n" );
document.write( "3x-20=speed of plane<BR>\n" );
document.write( "travel time=distance/speed (same for both plane and train)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150%2Fx%2B400%2F%283x-20%29 ALIGN=MIDDLE  ALT=\"150%2Fx%2B400%2F%283x-20%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "400x=450x-3000<BR>\n" );
document.write( "50x=3000<BR>\n" );
document.write( "x=60<BR>\n" );
document.write( "3x-20=180-20=160<BR>\n" );
document.write( "speed of train=60 mph<BR>\n" );
document.write( "speed of plane=160 mph </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );