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hjlf
3 years ago
9

There are 30 students in Mr.Holland's music class. If 30% of the students play middle school band, how many students in the clas

s play in middle school band?
Mathematics
1 answer:
Arisa [49]3 years ago
7 0
Do a proportion
30/100= x/30
30 x 30= 900
900 divided by 100= 9
Answer is 9 students
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Step-by-step explanation:

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Question 1
Ilia_Sergeevich [38]

We will see that the perimeter of the rectangle is exactly 390 ft, so the statement is true.

<h3>Is the fence enough?</h3>

For a rectangle of length L and width W, the perimeter is given by:

P = 2*(L + W).

In this case, we know that:

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Replacing that on the perimeter equation we get:

P = 2*(120 ft + 75  ft) = 390 ft

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So the statement is correct.

If you want to learn more about perimeters, you can read:

brainly.com/question/24571594

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