document.write( "Question 686194: a school has 1200 seniors. 60% are girls the rest are boys. 70% of the girls in class vote for a prom and 40% of boys vote for a prom. what percent of students did not want the prom. \n" ); document.write( "

Algebra.Com's Answer #424718 by randyjoseph7(13) $\"\"$ $\"About$

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1200 seniors
\n" ); document.write( "x.60 are girls=\r
\n" ); document.write( "\n" ); document.write( "720 girls which leaves 480 boys\r
\n" ); document.write( "\n" ); document.write( "70& of the girls would be 504 girls who voted yes
\n" ); document.write( "40% of boys would be 192 boys who voted yes\r
\n" ); document.write( "\n" ); document.write( "since 70% of the girls did that leaves 30% of girls vote no, 216 girls
\n" ); document.write( "and since 40% of boys did, that leaves 60% of boys who vote no,288 boys\r
\n" ); document.write( "\n" ); document.write( "216+288=504 students combined who dont want prom\r
\n" ); document.write( "\n" ); document.write( "so out of 1200 students, 504 vote no and 696 vote yes
\n" ); document.write( "cross multiply\r
\n" ); document.write( "\n" ); document.write( "1200/504 = 100/x
\n" ); document.write( "1200 nstudents 504 who domt want prom and 100% of school would be to 1200 students so you need to find out the percent who dont\r
\n" ); document.write( "\n" ); document.write( "turns out 504x100=50400 divided by 1200= 42%\r
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