document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=904645>Question 904645</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me! I've been stuck on this problem for a while now and could really use some help.\r<BR>\n" );
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document.write( "Wilma drove at an average speed of 40 mi/h from her home in City A to visit her sister in City B. She stayed in City B for 25 hours, and on the trip back averaged 50 mi/h. She returned home 43 hours after leaving. How many miles is City A from City B? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548835 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=548835\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Q:<BR>\n" );
document.write( "Wilma drove at an average speed of 40 mi/h from her home in City A to visit her sister in City B. She stayed in City B for 25 hours, and on the trip back averaged 50 mi/h. She returned home 43 hours after leaving. How many miles is City A from City B?<BR>\n" );
document.write( "A:<BR>\n" );
document.write( "Let x = distance from City A to City B (in miles)<BR>\n" );
document.write( "distance = rate*time or<BR>\n" );
document.write( "time = distance/rate<BR>\n" );
document.write( "(x/40) + 25 + (x/50) = 43, multiply both sides by 200<BR>\n" );
document.write( "5x + 5000 + 4x = 8600<BR>\n" );
document.write( "9x = 8600-5000<BR>\n" );
document.write( "9x = 3600<BR>\n" );
document.write( "x = 3600/9<BR>\n" );
document.write( "x = 400 miles  [Answer] </SPAN>\n" );
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