document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=725888>Question 725888</A>: <I><SPAN STYLE=\"word-break: break-all;\"> at a fast food restaurant, a family bought 4 hamburgers and 3 bags of french fries  for $4.20. At the same time, a family traveling with them bought 5 hamburgers and 2 bags of french fries for $4.55. What was the cost of one hamburger and cost of  1 bag of fries </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #444378 by </B><A HREF=/tutors/aboutme.mpl?userid=sfischer18><B>sfischer18(2)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sfischer18><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=444378\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x=cost of one hamburger<BR>\n" );
document.write( "let y=cost of one bag of fries<BR>\n" );
document.write( "..<BR>\n" );
document.write( "4x+3y=4.20<BR>\n" );
document.write( "5x+2y=4.55<BR>\n" );
document.write( "..<BR>\n" );
document.write( "8x+6y=8.40<BR>\n" );
document.write( "15x+6y=13.65<BR>\n" );
document.write( "subtract<BR>\n" );
document.write( "-7x=-5.25<BR>\n" );
document.write( "x=.75<BR>\n" );
document.write( ".. <BR>\n" );
document.write( "3y=4.20-4x<BR>\n" );
document.write( "3y=1.20<BR>\n" );
document.write( "y=.40<BR>\n" );
document.write( "cost of one hamburger=$.75<BR>\n" );
document.write( "cost of one bag of fries=$.40 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );