document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=539571>Question 539571</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are 72 members of the choir. There are 6 more boys than girls in the choir.<BR>\n" );
document.write( "a. Write the model of a system for the above situation.\r<BR>\n" );
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document.write( "b. Do you need to multiply any of the equations by a constant before solving by elimination? Explain.\r<BR>\n" );
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document.write( "Thank you!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #353588 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=353588\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There are 72 members of the choir. There are 6 more boys than girls in the choir.<BR>\n" );
document.write( "a. Write the model of a system for the above situation.<BR>\n" );
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document.write( "Write an equation for each statement<BR>\n" );
document.write( "\"There are 72 members of the choir.\"<BR>\n" );
document.write( "b + g = 72<BR>\n" );
document.write( "\"There are 6 more boys than girls\"<BR>\n" );
document.write( "b = g + 6<BR>\n" );
document.write( "Since you want to use elimination, write like this<BR>\n" );
document.write( "b - g = 6<BR>\n" );
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document.write( "b. Do you need to multiply any of the equations by a constant before solving by elimination? Explain. <BR>\n" );
document.write( "No<BR>\n" );
document.write( "b + g = 72<BR>\n" );
document.write( "b - g = 6<BR>\n" );
document.write( "-----------adding eliminates g, find b<BR>\n" );
document.write( "2b = 78<BR>\n" );
document.write( "b = 78/2<BR>\n" );
document.write( "b = 39 boys<BR>\n" );
document.write( "then<BR>\n" );
document.write( "39 + g = 72<BR>\n" );
document.write( "g = 72 - 39<BR>\n" );
document.write( "g = 33 girls<BR>\n" );
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document.write( "Check the solutions in original equations </SPAN>\n" );
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