document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=690438>Question 690438</A>: <I><SPAN STYLE=\"word-break: break-all;\"> THere are 750 people at a concert. Adult tickets are 45 dollars and kids tickets are 30 dollars. If at the end of the concert there was a total of $27,000 profit. how many adult and how many kid tickets were sold? <BR>\n" );
document.write( "I can't set up my equation. I started setting it up like this: 45x +30y = 27,000, but it doesn;t work and I also know that x + y = 750 (X is for adults and y is for kids) Please help me. THanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #426294 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10556)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=426294\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> THere are 750 people at a concert. Adult tickets are 45 dollars and kids tickets are 30 dollars. If at the end of the concert there was a total of $27,000 profit. how many adult and how many kid tickets were sold? <BR>\n" );
document.write( "I can't set up my equation. I started setting it up like this: 45x +30y = 27,000, but it doesn;t work and I also know that x + y = 750 (X is for adults and y is for kids) Please help me. THanks!\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "What doesn't work? You do have the 2 correct equations:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "x + y = 750 ------ y = 750 - x ----- eq (i)<BR>\n" );
document.write( "45x + 30y = 27,000<BR>\n" );
document.write( "Reducing the above equation we get: 15(3x + 2y) = 15(1,800)<BR>\n" );
document.write( "3x + 2y = 1,800 ---- eq (ii)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "3x + 2(750 - x) = 1,800 ------ Substituting 750 - x for y in eq (ii)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "3x + 1,500 - 2x = 1,800\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Determine the value of x, and then find y  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );