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Challenger Elementary School has 800 students. Every Wednesday, 12 percent of the students stay after school for Chess Club.

User Fourj
by
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2 Answers

4 votes
First you will need to set up your equation. Your 800 students is equal to 100% and x is equal to your 12%. Your equation should be set up similarly:

x 12
___ = ___
800 100

Next you will cross multiply. You will multiply x with 100 and 12 with 800.

100 * x = 12 * 800
100x = 9,600

Finally, you will make x equivalent to 1. You do this by dividing both sides of the equation by 100.

100x = 9,600
/ 100 /100
x = 96

If you have done your equation properly then your answer should come out to 96 students.
User Ahmad ElMadi
by
6.0k points
1 vote
Let's set up a proportion.


(x)/(800) (12)/(100)

Then solve for x:
12 x 800 = 9600
9600/100 = 96

96 is 12% of the 800 students. :)

Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
User Seki
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5.0k points