document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=111869>Question 111869</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am working on the following problem and hope I did it right.<BR>\n" );
document.write( "Adult tickets for a play cost $15 and child tickets cost $6.  If there were 33 people at a performatnce and the theater collected $360 from ticket sales, how many children attended the play? <BR>\n" );
document.write( "Let X= Adult tix<BR>\n" );
document.write( "Let Y= Child tix<BR>\n" );
document.write( "1x+1y=33<BR>\n" );
document.write( "15x+6y=360\r<BR>\n" );
document.write( "\n" );
document.write( "Then I had to multiply the first equation by 15.<BR>\n" );
document.write( "(15)(1x+1y) = 33(15)<BR>\n" );
document.write( "15x+15y= 495<BR>\n" );
document.write( "Then I had to multiply the other equation by -1<BR>\n" );
document.write( "(-1)(15x+6y) =360(-1)<BR>\n" );
document.write( "-15x-6y=-360<BR>\n" );
document.write( "Then I had to add both equations together.<BR>\n" );
document.write( "15x+15y=495<BR>\n" );
document.write( "-15x-6y=-360 the result was<BR>\n" );
document.write( "9y=135<BR>\n" );
document.write( "I divided both sides by 9<BR>\n" );
document.write( "and came up with y=15.<BR>\n" );
document.write( "Is that correct?<BR>\n" );
document.write( "I tried to check my work by inputting <BR>\n" );
document.write( "1x+1(15)=33<BR>\n" );
document.write( "1x+15=33<BR>\n" );
document.write( "then subtracted 15 from both sides and came up with x=18.<BR>\n" );
document.write( "When I tried to check my work <BR>\n" );
document.write( "15(15) +6(18)this is supposed to =360 and I don't think that came out right.<BR>\n" );
document.write( "What did I do wrong?<BR>\n" );
document.write( "Thank you.<BR>\n" );
document.write( "Tracy<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #81605 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=81605\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> YOU WERE OK UNTIL YOU MIXED UP THE X=18 & Y=15<BR>\n" );
document.write( "15*18+6*15=360<BR>\n" );
document.write( "279+90=360<BR>\n" );
document.write( "360=360<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );