document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=926751>Question 926751</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A person traveling 210 km by car drove the first part at 100 kph and the rest at 80 kph. If the trip took 2.25 hours to complete, what distance was traveled at 100 kph? Write equation and solve. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #562444 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=562444\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = distance driven at 100 kph<BR>\n" );
document.write( "y = time driven at 100 kph<BR>\n" );
document.write( "---<BR>\n" );
document.write( "s = d/t<BR>\n" );
document.write( "t = d/s<BR>\n" );
document.write( "---<BR>\n" );
document.write( "y = x/100<BR>\n" );
document.write( "2.25 - y = (210 - x)/80<BR>\n" );
document.write( "---<BR>\n" );
document.write( "100y = x<BR>\n" );
document.write( "80*2.25 - 80y = 210 - x<BR>\n" );
document.write( "---<BR>\n" );
document.write( "put the system of linear equations into standard form<BR>\n" );
document.write( "---<BR>\n" );
document.write( "100y = x<BR>\n" );
document.write( "180 - 80y = 210 - x<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x - 100y = 0<BR>\n" );
document.write( "x + 180 - 80y = 210<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x - 100y = 0<BR>\n" );
document.write( "x - 80y = 30<BR>\n" );
document.write( "---<BR>\n" );
document.write( "copy and paste the above standard form linear equations in to this solver:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "solution:<BR>\n" );
document.write( "x = distance driven at 100 kph = 150 km<BR>\n" );
document.write( "y = time driven at 100 kph = 1.5 hours<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve systems of linear equations up to 6-equations 6-variables:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );