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
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Algebra.Com's Answer #191429 by ankor@dixie-net.com(22740)\"\" \"About 
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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?
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\n" ); document.write( "Let x = per cent of entire class (as a decimal)
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\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
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