document.write( "Question 811570: 12 of the 30 students in mrs. smith's class are boys. what percent of the classis made up of girls? \n" ); document.write( "
Algebra.Com's Answer #488833 by stanbon(75887)\"\" \"About 
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12 of the 30 students in mrs. smith's class are boys. what percent of the classis made up of girls?
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\n" ); document.write( "There are 30-12 = 18 girls.
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\n" ); document.write( "% of girls = 18/30 = 0.60 = 60%
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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