document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=152920>Question 152920</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Translate the following into a system of equations, then solve it:  A customer walks into an electronics store and buys 5 MP3 players and 8 sets of headphones, paying $840.  A 2nd customer buys 3 MP3 players and 4 sets of headphones, and pays $480.  How much does an MP3 player cost?  How much does a set of headphones cost? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #112619 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=112619\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5MP+8H=840<BR>\n" );
document.write( "3MP+4H=480 MULTIPLY THIS EQUATION BY -2 & ADD THEM<BR>\n" );
document.write( "-6MP-8H=-960<BR>\n" );
document.write( "5MP+8H=840<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "-MP=-120<BR>\n" );
document.write( "MP=$120 COST OF EACH MP3 PLAYER.<BR>\n" );
document.write( "5*120+8H=840<BR>\n" );
document.write( "600+8H=840<BR>\n" );
document.write( "8H=840-600<BR>\n" );
document.write( "8H=240<BR>\n" );
document.write( "H=240/8<BR>\n" );
document.write( "H=$30 COST OF EACH SET OF HEADPHONES.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "3*120+4*30=480<BR>\n" );
document.write( "360+120=480<BR>\n" );
document.write( "480=480<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );