document.write( "Question 259959: A class consisting of 30 girls and 40 boys sponsored a Halloween dance. If 60 percent of the girls and 25 percent of the boys went to the dance, what percent of the entire class went to the dance?\r
\n" );
document.write( "\n" );
document.write( "a)30 % b) 40 % c) 45 % d) 70 % e) 85 %\r
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #191429 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! A class consisting of 30 girls and 40 boys sponsored a Halloween dance. If 60 percent of the girls and 25 percent of the boys went to the dance, what percent of the entire class went to the dance? \n" ); document.write( ": \n" ); document.write( "Let x = per cent of entire class (as a decimal) \n" ); document.write( ": \n" ); document.write( "70x = .60(30) + .25(40) \n" ); document.write( "70x = 18 + 10 \n" ); document.write( "70x = 28 \n" ); document.write( "x = 28/70 \n" ); document.write( "x = .4 = 40% of the entire class \n" ); document.write( " |