document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=445895>Question 445895</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 7 audio cassettes and 3 video cassettes cost rs 1110,while 5 audio cassettes and 4 video cassettes cost rs 1350 find the cost of an audio cassette and a video casette </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #307046 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=307046\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Video---	x	Cost				<BR>\n" );
document.write( "Audio===	y	Cost				<BR>\n" );
document.write( "3x+7y=1100	.............1	<BR>\n" );
document.write( "4x+5y=1350	.............2	<BR>\n" );
document.write( "Eliminate y								<BR>\n" );
document.write( "multiply (1)by 		-5						<BR>\n" );
document.write( "Multiply (2) by		7						<BR>\n" );
document.write( "-15x-35y=-5500		<BR>\n" );
document.write( "28x+35y	=9450		<BR>\n" );
document.write( "Add the two equations								<BR>\n" );
document.write( "13x=3950		<BR>\n" );
document.write( "/13							<BR>\n" );
document.write( "x= Rs.303.85	Cost of Video 					<BR>\n" );
document.write( "plug value of 	x in (1)				<BR>\n" );
document.write( "3x+7y=1100	<BR>\n" );
document.write( "911.54	+7y=1100		<BR>\n" );
document.write( "7	y	=	1100		-911.54<BR>\n" );
document.write( "7	y	=	188.46		<BR>\n" );
document.write( "y	=Rs.26.92	Audio 	<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );