document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=112319>Question 112319</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On the first day of school, the percentage of boys in a particular class is 60%.  During the school year, six girls move away, and are replaced in the class by six boys; this makes the class roster 75% boys.  Find the number of boys and girls in the class on the first day of school.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #81935 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=81935\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .6X=BOYS<BR>\n" );
document.write( ".6X+6=.75X<BR>\n" );
document.write( ".6X-.75X=-6<BR>\n" );
document.write( "-.15X=-6<BR>\n" );
document.write( "X=-6/-.15<BR>\n" );
document.write( "X=40 CLASS SIZE ON THE FIRST DAY OF SCHOOL.<BR>\n" );
document.write( ".6*40=24 BOYS ON THE FIRST DAY OF SCHOOL.<BR>\n" );
document.write( "40-24=16 GIRLS ON THE FIRST DAY OF SCHOOL.<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( ".6*40+6=.75*40<BR>\n" );
document.write( "24+6=30<BR>\n" );
document.write( "30=30\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );