document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=897700>Question 897700</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mark drove to visit his grandma at 75km/hr. He returned at 50km/hr. It took 45 minutes longer to return home than to get to his grandmas house, how long dod it take him to get home? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #544241 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=544241\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mark drove to visit his grandma at 75km/hr. He returned at 50km/hr. It took 45 minutes longer to return home than to get to his grandmas house, how long dod it take him to get home?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=travel time to grandma's house<BR>\n" );
document.write( "x+45min=travel time to return home<BR>\n" );
document.write( "distance=speed*travel time<BR>\n" );
document.write( "..<BR>\n" );
document.write( "45 min=45/60 hr=3/4 hr<BR>\n" );
document.write( "75x=50(x+3/4)<BR>\n" );
document.write( "75x=50x+37.5<BR>\n" );
document.write( "25x=37.5<BR>\n" );
document.write( "x=1.5<BR>\n" );
document.write( "x+3/4=2.25<BR>\n" );
document.write( "how long did it take him to get home? 2.25 hr<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );