document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=419607>Question 419607</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Lea drives from her apartment to her parents house on saturday at a rate of 60mph. On her way back, traffic was heavy and she could only drive 45mph. It took her 1.5 hours longer on the drive back sunday. What was the distance between her apartment and her parents house? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #293407 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=293407\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Write 2 equations: 1 for each trip<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d ALIGN=MIDDLE  ALT=\"d\"   DISABLED_style= \"max-width:90%; height:auto;\" > = distance to her parents house<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t ALIGN=MIDDLE  ALT=\"t\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time to get from apartment to parents house<BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "apartment to parents house:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+60t ALIGN=MIDDLE  ALT=\"d+=+60t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------<BR>\n" );
document.write( "parents house to apartment:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+45%2A%28t+%2B+3%2F2%29 ALIGN=MIDDLE  ALT=\"d+=+45%2A%28t+%2B+3%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+45t+%2B+135%2F2%29 ALIGN=MIDDLE  ALT=\"d+=+45t+%2B+135%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2d+=+90t+%2B+135 ALIGN=MIDDLE  ALT=\"2d+=+90t+%2B+135\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute (1) into (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2A60t+=+90t+%2B+135 ALIGN=MIDDLE  ALT=\"2%2A60t+=+90t+%2B+135\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=120t+-+90t+=+135 ALIGN=MIDDLE  ALT=\"120t+-+90t+=+135\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30t+=+135 ALIGN=MIDDLE  ALT=\"30t+=+135\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+45 ALIGN=MIDDLE  ALT=\"t+=+45\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+60t ALIGN=MIDDLE  ALT=\"d+=+60t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Have to go- you finish </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );