document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=519971>Question 519971</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a merchant hass coffee worth $20.00 a pound that she wishes to mix with 30 pounds of coffee worth $90.00 a pound to get a mixture that can be sold for $40.00 a pound. How many pounds of the $20.00 coffee should be used? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #345881 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=345881\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 	--------price	----------------	quantity									<BR>\n" );
document.write( "Coffee I	90	----------------			30	pounds						<BR>\n" );
document.write( "coffee II	20	----------------			x	pounds						<BR>\n" );
document.write( "Mixture	40	----------------	30	+	x	pounds						<BR>\n" );
document.write( "												<BR>\n" );
document.write( "90*30+20x=40(30	+x)<BR>\n" );
document.write( "2700+20x=1200+40x				<BR>\n" );
document.write( "20x+-40	x=1200	-	-2700				<BR>\n" );
document.write( "-20	x	=	-1500									<BR>\n" );
document.write( "/	-20											<BR>\n" );
document.write( "x	=	75										<BR>\n" );
document.write( "		75	pounds		of	$20	coffee II				<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );