document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=274910>Question 274910</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A coffee shop mixes French roast coffee worth $9 per pound with Kona coffee worth $4 per pound. How much of each type of coffee was used in order to obtain 20 pounds of a mixture worth $5 per pound. Thank You </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #200607 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=200607\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 9*x+4(20-x)=5*20<BR>\n" );
document.write( "9x+80-4x=100<BR>\n" );
document.write( "5x=100-80<BR>\n" );
document.write( "5x=20<BR>\n" );
document.write( "x=20/5<BR>\n" );
document.write( "x=4 pounds of $9 coffee is used.<BR>\n" );
document.write( "20-4=16 pounds of $4 coffee is used.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "9*4+4*16=5*20<BR>\n" );
document.write( "36+64=100<BR>\n" );
document.write( "100=100 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );