document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=521803>Question 521803</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the cost of an adult ticket for the school play is 2.00. the cost of a student ticket is 1.50 the total income from the sale of tickets was 550.00. the number of adult tickets sold was 100 less than 3 times the number of student tickets sold. how many of each type of ticket was sold? systems of linear equations\r<BR>\n" );
document.write( "\n" );
document.write( "i got the equations 2.00x+1.50y=550.0<BR>\n" );
document.write( "                    x=3(times)y-100<BR>\n" );
document.write( "im solving for elimination and i dont know what to do with the multiplication  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #346590 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=346590\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a = number of adult tickets sold<BR>\n" );
document.write( "2a = value of the adult tickets sold<BR>\n" );
document.write( "s = number of student tickets sold<BR>\n" );
document.write( "1.5s = value of the student tickets sold<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Total ticket sales was $550.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "2a + 1.5s = 550<BR>\n" );
document.write( ".<BR>\n" );
document.write( "The adult tickets were 100 less than 3 times the number of student tickets.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "a = 3s -100<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Substitute for a.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "2(3s-100) + 1.5s = 550<BR>\n" );
document.write( ".<BR>\n" );
document.write( "6s -200 + 1.5s = 550<BR>\n" );
document.write( ".<BR>\n" );
document.write( "7.5s = 750<BR>\n" );
document.write( ".<BR>\n" );
document.write( "s = 100<BR>\n" );
document.write( ".<BR>\n" );
document.write( "substitute s=100 in the other equation<BR>\n" );
document.write( ".<BR>\n" );
document.write( "a = 3s-100<BR>\n" );
document.write( ".<BR>\n" );
document.write( "a = 3(100)-100<BR>\n" );
document.write( ".<BR>\n" );
document.write( "a = 200<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Check the value to be sure this is the correct answer.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "2a = 2*200 = 400<BR>\n" );
document.write( ".<BR>\n" );
document.write( "1.5s = 1.5*100 = 150<BR>\n" );
document.write( ".<BR>\n" );
document.write( "400 + 150 = 550<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Correct.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Answer: They sold 200 adult tickets and 100 student tickets.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Done. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );