document.write( "Question 697240: There are twice as many boys as girls in the class. if 20% of the boys and 35% of the girls have already handed over their result cards, what percent of the students have not yet handed over their result cards? \n" ); document.write( "

Algebra.Com's Answer #429809 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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There are twice as many boys as girls in the class.
\n" ); document.write( "let x = no. of girls
\n" ); document.write( "then
\n" ); document.write( "2x = no. of boys
\n" ); document.write( "and
\n" ); document.write( "3x = total number of students
\n" ); document.write( ":
\n" ); document.write( " if 20% of the boys and 35% of the girls have already handed over their result cards, what percent of the students have not yet handed over their result cards?
\n" ); document.write( ":
\n" ); document.write( " $\"%28.2%282x%29%2B.35x%29%2F%283x%29\"$ = $\"%28.4x+%2B+.35x%29%2F%283x%29\"$ = $\"%28.75x%29%2F%283x%29\"$
\n" ); document.write( "Cancel x
\n" ); document.write( " $\".75%2F3\"$ * 100 = 25% of the students have handed theirs in, therefore
\n" ); document.write( "75% have not. \n" ); document.write( "

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