document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1177037>Question 1177037</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Molly and her sister Kayla leave their home at different times to travel back to their respective colleges. Molly travels at 50 mph for M hours, and Kayla travels at 60 mph for K hours. After 6 hours, they are 500 miles apart. Which system of linear equations can be used to determine the driving time of each sister?<BR>\n" );
document.write( "A)	M + K = 6<BR>\n" );
document.write( "50M − 60K = 500	<BR>\n" );
document.write( "B)	M − K = 6<BR>\n" );
document.write( "50M − 60K = 500	<BR>\n" );
document.write( "C)	M + K = 6<BR>\n" );
document.write( "50M + 60K = 500	<BR>\n" );
document.write( "D)	M + K = 12<BR>\n" );
document.write( "50M + 60K = 1000 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #805223 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52864)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=805223\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "To be correct, the problem must say, whether they travel in one direction, or in opposite directions, \r<BR>\n" );
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document.write( "or perpendicularly, or some other way.\r<BR>\n" );
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