document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=478304>Question 478304</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tom's home is 1,800 m from his school. One morning he walked part of the way to school and then ran the rest. If it took him 20 minutes or less to get school, and he walks at 70m/min. and runs 210m/min how far did he run? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #327737 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=327737\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Tom's home is 1,800 m from his school. One morning he walked part of the way to school and then ran the rest. If it took him 20 minutes or less to get school, and he walks at 70m/min. and runs 210m/min how far did he run?<BR>\n" );
document.write( "**<BR>\n" );
document.write( "let x=meters Tom ran<BR>\n" );
document.write( "1800-x=meters Tom walked<BR>\n" );
document.write( "Travel time=distance/speed<BR>\n" );
document.write( "x/210+(1800-x)/70=20<BR>\n" );
document.write( "LCD=210<BR>\n" );
document.write( "x+3(1800-x)=4200<BR>\n" );
document.write( "x+5400-3x=4200<BR>\n" );
document.write( "-2x=-1200<BR>\n" );
document.write( "x=600 <BR>\n" );
document.write( "ans:<BR>\n" );
document.write( "Tom ran for 600 m </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );