Wednesday, September 1, 2010

WELCOME BACK!

On the first day of school, the percentage of boys in a particular class is 60%. During the school year, six girls move away, and are replaced in the class by six boys; this makes the class roster 75% boys. Find the number of boys and girls in the class on the first day of school. post your solution with work to prove here for a chance to win a raffle!
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2 comments:

  1. SkeetSeptember 8, 2010 at 4:45 PM

    24 Boys 16 Girls on the first day of school. 6 boys increased divided by 15%= 40 students in the class. 60% of 40 is 24 boys and 40-24=16 Girls

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  2. AnonymousSeptember 26, 2010 at 5:30 PM

    There are 24 boys and 16 girls on the first day of school.
    15 percent of 6 is 40. There are 40 kids in the class. 60 percent of 40 (for boy percent) is 24. there are 24 boys. Taking 24 away from 40 reveals that there are 16 girls in the class at the beginning of the year.

    to my homework grade also please

    Zach

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