document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=975154>Question 975154</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 30% of the pupils in a class are boys.There are 21 girls.How many pupils are there in the class inall? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #596955 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=596955\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x be the total number of students<BR>\n" );
document.write( "we are given that 30% of all students are boys, so 1 - 0.30 = 0.70 and 70% of all students are girls, then<BR>\n" );
document.write( "0.70x = 21<BR>\n" );
document.write( "x = 21 / 0.70 = 30<BR>\n" );
document.write( "there are 30 students in the class<BR>\n" );
document.write( " </SPAN>\n" );
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