document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=63130>Question 63130</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0072549017/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A small firm produces both AM and AM/FM car radios. The AM radios take 15 h to produce, and the AM/FM radios take 20 h. The number of production hours is limited to 300 h per week. The plant’s capacity is limited to a total of 18 radios per week, and existing orders require that at least 4 AM radios and at least 3 AM/FM radios be produced per week. Write a system of inequalities representing this situation. Then, draw a graph of the feasible region given these conditions, in which x is the number of AM radios and y the number of AM/FM radios. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #43962 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=43962\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1st: x+y<=18<BR>\n" );
document.write( "2nd: 15x+20y<=300<BR>\n" );
document.write( "4<=x<=15<BR>\n" );
document.write( "2<=y<=14<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Solve 1st and 2nd for y to get:<BR>\n" );
document.write( "3rd: y<=-x+18<BR>\n" );
document.write( "4th: y<=(-3/4)x+15<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "Graph:<BR>\n" );
document.write( "Draw vertical lines at x=4 and x=15<BR>\n" );
document.write( "Draw horizontal lines at y=2 and y=14<BR>\n" );
document.write( "Graph y<=-x+18<BR>\n" );
document.write( "Graph y<=(-3/4)x+15<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );