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astra-53 [7]
3 years ago
8

The variables x and y very directly. Use the values to find the constant of proportionality K then write equation that relates t

o x and y. Write any fraction in simplest form. Y equals 20 and X equals 12
Mathematics
1 answer:
lesya [120]3 years ago
4 0

Answer:

k=5/3

Step-by-step explanation:

The variables x and y vary directly. Given that, y = 20 and x = 12

We can write it as :

y=kx

Where k is constant of proportionality

Put the values of x and y

20=12k

k = 20/12

k = 5/3

So, the value of the constant of proportionality is 5/3.

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Answer:

Hey, do you know how to screenshot images? There is also a website for Brainly if needed

Step-by-step explanation:

7 0
3 years ago
A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the followi
Svet_ta [14]

Using statistical concepts, we have that:

  • a. The range is 6 days, and the interpretation is: B. The number of days separating the fewest and most sick days taken is equal to the range.
  • b. The standard deviation is of 2.2, which means that the average spread about the mean is of 2.2 units.

<h3>Range and standard deviation:</h3>
  • The range of a data-set is given by the difference <u>between the highest value and the lowest value in the data-set</u>.
  • The standard deviation of a data-set is given by the <u>square root of the  sum of the difference squared of each observation and the mean, divided by the number of observations</u>.

Item a:

  • The lowest value is of 0.
  • The highest value is of 6.

Hence:

The range is 6 days, and the interpretation is: B. The number of days separating the fewest and most sick days taken is equal to the range.

Item b:

The mean is:

M = \frac{0 + 1 + 4 + 0 + 0 + 6 + 3}{7} = 2

Hence, the standard deviation is:

S = \sqrt{\frac{(0-2)^2+(1-2)^2+(4-2)^2+(0-2)^2+(0-2)^2+(6-2)^2+(3-2)^2}{7}} = 2.2

The standard deviation is of 2.2, which means that the average spread about the mean is of 2.2 units.

You can learn more about range and standard deviation at brainly.com/question/11729451

7 0
2 years ago
Find the value by evaluating the function. Do not include spaces in your answer.
Mamont248 [21]

Answer:

Solution is 34

Step-by-step explanation:

to find f(8) you plug in 8 for x in the equation

f(x)=4(8)+2=34

hope this helps.

7 0
3 years ago
Is 20 an independent or dependent variable
kirill115 [55]
Independent. A dependent variable would be a letter or symbol that needs a letter or key to be solved.
5 0
3 years ago
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A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a blue marble, replacing it, and
defon

I did the math and i think it would be A i hope this i right

8 0
3 years ago
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