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Blizzard [7]
3 years ago
7

A petting zoo owner is building an enclosure for his farm animals. He needs 353 feet of fencing. The supply store sells fencing

in pieces 12 feet long. How many pieces of fencing will he use?
Mathematics
2 answers:
timama [110]3 years ago
6 0

Answer:

30 pieces of wire is needed.

Step-by-step explanation:

A petting zoo owner is building an enclosure for his farm animals.

He needs 353 feet of fencing. The supply store sells fencing in pieces 12 feet long.

The number of pieces needed = \frac{353}{12}=29.42 feet

This can be rounded to 30 pieces.

Hence, the answer is 30 pieces.

jolli1 [7]3 years ago
4 0
353/12 =29.41. But will have to round up to 30 so the answer is 30
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Since both conditions are satisfied we can use the normal approximation and the distribution for the proportion is given by:

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Step-by-step explanation:

Previous concepts

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Solution to the problem

We know that n = 50 and p =0.78.

We need to check the conditions in order to use the normal approximation.

np=50*0.78=39  \geq 10

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p \sim N (p, \sqrt{\frac{p(1-p)}{n}})

With the following parameters:

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Step-by-step explanation:

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