document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=605664>Question 605664</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 ran the rest. If it took him 20 minutes or less to get to school, and he walks at 70 m/min and runs 210 m/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 #381758 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=381758\">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 ran the rest. If it took him 20 minutes or less to get to school, and he walks at 70 m/min and runs 210 m/min, how far did he run?<BR>\n" );
document.write( "**<BR>\n" );
document.write( "let x=distance Tom ran<BR>\n" );
document.write( "1800-x=distance Tom walked<BR>\n" );
document.write( "travel time=distance/rate of speed<BR>\n" );
document.write( "..<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 m<BR>\n" );
document.write( "ans:<BR>\n" );
document.write( "distance Tom ran=600 m<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );