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JulijaS [17]
3 years ago
5

Collins middle school has 222 sixth grade students if the sixth grade is 30% of the total school how many students are in the mi

ddle school
Mathematics
2 answers:
stellarik [79]3 years ago
7 0
Answer: 740
You can answer the question using proportions

The proportion:
222/x = 30/100 (in fraction form)

This will come out to:
22200 = 30x
22200 dived by 30 is 740
x = 740

I hope this somewhat helped
Alika [10]3 years ago
7 0

Answer:

720

Step-by-step explanation:

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How many ways can a dance instructor send 4 of her 11 students to a summer dance program?
Sedaia [141]

Answer:

d) 330

Step-by-step explanation:

The number of ways can a dance instructor send 4 of her 11 students to summer dance program is  C(11 , 4)

That is 11_{C_{4} } ways

by using formula n_{C_{r} } = \frac{n!}{(n-r)!r!}

now simplification

11_{C_{4} } = \frac{11!}{(11-4)!4!}

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after cancelling 7! and on simplification

   = \frac{11X10X9X8}{4X3X2X1}

after cancellation we get 330 ways

The number of ways can a dance instructor send 4 of her 11 students to summer dance program is 330

   

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Step-by-step explanation:

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