document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=891626>Question 891626</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car travels 30 kph faster than a truck . The car covers 540 km in three hours less than the time it takes to travel the same distance how fast does the car travel? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #539897 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=539897\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A car travels 30 kph faster than a truck . The car covers 540 km in three hours less than the time it takes to travel the same distance how fast does the car travel?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=speed of truck<BR>\n" );
document.write( "x+30=speed of car<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=540%2Fx-540%2F%28x%2B30%29=3 ALIGN=MIDDLE  ALT=\"540%2Fx-540%2F%28x%2B30%29=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "lcd:x(x+30)<BR>\n" );
document.write( "540(x+30)-540x=3x(x+30)<BR>\n" );
document.write( "540x+16200-540x=3x^2+90x<BR>\n" );
document.write( "3x^2+90x-16200=0<BR>\n" );
document.write( "x^2+30x-5400=0<BR>\n" );
document.write( "(x+90)(x-60)=0<BR>\n" );
document.write( "x=-90 (reject)<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x=60<BR>\n" );
document.write( "x+30=90<BR>\n" );
document.write( "how fast does the car travel? 90 km/hr </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );