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PilotLPTM [1.2K]
3 years ago
6

5 college students were asked how many hours of sleep did they get at night on the average the responses were a 7 hours 9 hours

5 hours 6 hours and 8 hours what is the average amount of hours of sleep do college students got in a night​
Mathematics
2 answers:
Galina-37 [17]3 years ago
7 0

7 Hours on Average

add up all the hours and you get 35

then divide 35 by the number of given hours which is 5

35/5 = 7

so the average amount of hours slept was 7

Nitella [24]3 years ago
3 0

Answer:

7 hours

Step-by-step explanation:

To find this average, add up the five data points given and divide your result by five (5):

(7 + 9 + 5 + 6 + 8) / 5 = 35 / 5 = 7

This group of students averaged 7 hours of sleep per night.

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The expression 7d gives the number of days in d weeks . Evaluate 7d for d=12. How many days are in 12 weeks?
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84 days are in 12 weeks

Step-by-step explanation:

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3 years ago
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A, b, c, and d please
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<h2>Answers / Step-by-step explanation:</h2><h3>a. What is the length of one side of the square.</h3>

<em>Looking at the image, the radius (r) of the circle appears to cover half of the length of a side of the square. Hence, the side of the square has a length of </em><em>2r</em><em>.</em>

<em />

<u><em>-------------------------------------------------------------------------------------------------------</em></u>

<em />

<h3>b. The formula A= πr² is used to find the area of a circle. The formula A=4r² can be used to find the area of the square. Write the ratio of the area of the circle to the area of the square in the simplest form.</h3>

<em />Ratio=\frac{\pi r^{2} }{4r^2} =\frac{\pi}{4}.

<em>Notice that the value "r²" disappears from the expression because is being multiplied and divided by it at the same time.</em>

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Ratio=\frac{4\pi }{16} =0.7854.

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<u><em>-------------------------------------------------------------------------------------------------------</em></u>

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c. Complete the table.

<em>To complete each cell of the table, simply take the equation of the asked parameter and substitute the value of r by the number indicated in the title of the column. For example, column 3 should be filled out like this:</em>

Area of Circle (units²): π(3)²or 9π.

Length of 1 Side of the Square: 2r= 2(3)= 6.

Area of Square (units²)= 4r²= 4(3)²= 36.

Ratio: \frac{\pi}{4}.

<em>Do the same for all the other columns. </em>

<em>The answers to the table are presented on the attached image</em><em>.</em>

<em />

<u><em>-------------------------------------------------------------------------------------------------------</em></u>

<em />

d. What can you conclude about the relationship between the area of the circle and the square?

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4 0
2 years ago
The cost of 5 scarves is 88.75 <br> what is the unit price?
Kitty [74]

Answer:

17.75

Step-by-step explanation:

Unit price means the price of a single unit so we have to divide 88.75 by 5

88.75 ÷ 5 = 17.75

3 0
3 years ago
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3 years ago
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Answer:

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3 years ago
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