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Readme [11.4K]
2 years ago
6

If the area of the rug in this den 80 square feet and the width of the carpet is 8’,what is the perimeter of the rug?

Mathematics
1 answer:
lesya692 [45]2 years ago
7 0
The area is 80 square ft and they give us the width which is 8’ so 8 times 10 gives us 80 square feet which is the area meaning 10 is the length now we add 8+8= 16 and then 10+10= 20 20+16= 36 so the answer is 36 for the question.
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Juan cuts a piece of paper in half. he then cuts each half into thirds and each of those pieces into eights. finally, he cuts ea
Nookie1986 [14]

Answer:

D: 768

Step-by-step explanation:

First, he divides a piece of paper in half.

1 \div  \frac{1}{2}  = 2

He gets two pieces.

Next, he cuts each of the pieces into three parts.

2 \div  \frac{1}{3}  = 6

Thirdly, he cuts each of the 6 pieces into 8 pieces.

6 \div  \frac{1}{8}  = 48

Lastly, he divides each piece into 16 parts.

48 \div  \frac{1}{16}  = 768

He has 768 pieces in the end. (D)

7 0
3 years ago
A research company desires to know the mean consumption of meat per week among people over age 23. A sample of 164 people over a
Elan Coil [88]

Answer:

The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.8}{2} = 0.1

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.1 = 0.9, so z = 1.28

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.28*\frac{0.7}{\sqrt{164}} = 0.07

The lower end of the interval is the mean subtracted by M. So it is 4.1 - 0.07 = 4.03 pounds

The upper end of the interval is the mean added to M. So it is 4.1 + 0.07 = 4.17 pounds

Rounded to one decimal place

The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.

8 0
2 years ago
What is the value of f(−3)?
Daniel [21]
Is that the whole question ?
7 0
3 years ago
Solve by solution x+4y=4 and 2x-3y=8
Dennis_Churaev [7]
I hope this helps you

3 0
2 years ago
Urgent help!<br><br> refer to photo
vladimir1956 [14]
The answer is a, a=15
7 0
2 years ago
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