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Serga [27]
3 years ago
15

David is building wooden picture frames. Each frame requires 3/4 feet of wood. If David started with 12 feet of wood and now has

6 feet of wood remaining, how many pictures frames has he built?
Mathematics
2 answers:
statuscvo [17]3 years ago
6 0

Answer:

0.75

Step-by-step explanation:

3241004551 [841]3 years ago
3 0

Answer:

8 picture frames would be built.

Step-by-step explanation:

David started with 12 feet's of wood

And has 6feets if wood remaining

Feets of wood used = 12 - 6 = 6feets

Each frame = 3/4 feets

1 picture frame = 3/4 feets

Number of pictures frames has he built =

X picture frame = 6 / (3/4)

X picture frames = 6 x 4/3

= 24/3 = 8

8 picture frames would be built.

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mafiozo [28]

Answer:

a) \bar X = 369.62

b) Median=175

c) Mode =450

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And we can find the limits without any outliers using two deviations from the mean and we got:

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And for this case we have two values above the upper limit so then we can conclude that 1500 and 3000 are potential outliers for this case

Step-by-step explanation:

We have the following data set given:

49 70 70 70 75 75 85 95 100 125 150 150 175 184 225 225 275 350 400 450 450 450 450 1500 3000

Part a

The mean can be calculated with this formula:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

Replacing we got:

\bar X = 369.62

Part b

Since the sample size is n =25 we can calculate the median from the dataset ordered on increasing way. And for this case the median would be the value in the 13th position and we got:

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Part c

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Part d

The midrange for this case is defined as:

MidR= \frac{Max +Min}{2}= \frac{49+3000}{2}= 1524.5

Part e

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s =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

And replacing we got:

s = 621.76

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Answer:

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Option B is correct answer.

Step-by-step explanation:

We need to find sum of \frac{7x}{x^2-4} and \frac{2}{x+2}

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Replacing x^2-4

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Step-by-step explanation:

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Hence, The  experimental probability that she will roll an even number= \frac{1}{2}

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3 years ago
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