document.write( "Question 378521: 70% of girls want to go to prom and 40% of boys want to go to prom. Is it possible that only 50% of the students wanted to go to prom? \n" ); document.write( "
Algebra.Com's Answer #268893 by scott8148(6628)\"\" \"About 
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yes\r
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\n" ); document.write( "\n" ); document.write( ".7g + .4b = .5(g + b)\r
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\n" ); document.write( "\n" ); document.write( ".7g + .4b = .5g + .5b\r
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\n" ); document.write( "\n" ); document.write( ".2g = .1b\r
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\n" ); document.write( "\n" ); document.write( "2 = b/g\r
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\n" ); document.write( "\n" ); document.write( "the percentages work if the boy/girl ratio is 2/1
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