document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=491508>Question 491508</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose you have a budget of 450 dollars for one month. You would like to buy some textbooks and CDs. <BR>\n" );
document.write( "The average cost of a book is 55 dollars each and that of a CD is <BR>\n" );
document.write( "12 dollars each. Let x denote the number of books you buy and y denote the <BR>\n" );
document.write( "number of CDs that you buy. \r<BR>\n" );
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document.write( "This is what I have tried and I just cannot get the right answer.\r<BR>\n" );
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document.write( "Write the equation of your budget constraint in the form y=mx+b, where m and b are some numbers.<BR>\n" );
document.write( "y=55x+450   and<BR>\n" );
document.write( "y=4.58x+37.5<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #334643 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=334643\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y = the number of CDs, so 12y = value of the CDs purchased<BR>\n" );
document.write( "x = the number of books, so 55x = value of the books purchased<BR>\n" );
document.write( "The total amount is 450, so you can show:<BR>\n" );
document.write( "12y + 55x = 450<BR>\n" );
document.write( "Subtract 55x from both sides<BR>\n" );
document.write( "12y = -55x + 450<BR>\n" );
document.write( "Divide both sides by 12<BR>\n" );
document.write( "y = -55/12*x + 450/12<BR>\n" );
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