document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1127411>Question 1127411</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 5 cups of coffee and 4 cups of tea cost $26.80 whereas 7 cups of coffee and 6 cups of tea cost $38.60.Find the difference between the cost of 1 cup of coffee and 1 cup of tea </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #743822 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=743822\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> c and t are the variables<BR>\n" );
document.write( "5c+4t=26.80<BR>\n" );
document.write( "7c+6t=38.60<BR>\n" );
document.write( "multiply top by 3<BR>\n" );
document.write( "15c+12t=80.40 and bottom by -2<BR>\n" );
document.write( "-14c-12t=-77.20<BR>\n" );
document.write( "c=$2.80<BR>\n" );
document.write( "therefore 14+4t=26.80, 4t=12.80 and t=$3.20<BR>\n" );
document.write( "this checks in the second equation<BR>\n" );
document.write( "The difference between the two prices is $0.40, with tea more expensive. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );