I REALLY NEED HELP! I will mark u Brainiest!!!!

The data shows the number of years that 30 employees worked for nc insurance company before requirement. _____ is the population mean for the number of years worth, and _____ % of the employees worked for the company for the last 10 years. (round off your answers to the nearest integer.)

Answers

Answer 1

Answer:

population mean: 14

employees worked: 73%

Step-by-step explanation:

The mean is found by adding the years of service and dividing by the number of employees. The total years of service is 417, so the average is ...

average years worked = 417/30 = 13.9 ≈ 14 . . . years

__

The percentage of employees that have worked there at least 10 years is found by counting the number with 10 or more years of service and dividing that count by the total number of employees. The result is then expressed as a percentage.

(10 years or over)/(total number) = 22/30 = 0.73_3 (a repeating decimal) ≈ 73%

_____

Comment on the working

A spreadsheet can be helpful for this. It has a function that can calculate the mean for you. Sorting the years of service into order can make it trivially easy to count the number that are 10 or more, or you can write a function that will do the count for you. (Also, less than 10 means the years are a single digit. There are 8 single-digit numbers in your list.) The hard part is copying 30 numbers without error.


Related Questions

Riddle: Mr. and Mrs. Mustard have six daughters and each daughter has one brother. How many people are in the Mustard family?

Correct answer gets Brainliest!! :)

Answers

answer : there are 12 people in the mustard family ?

Simplify the expression 1/4(8x+16y)

Answers

Answer:

2x+4y

Step-by-step explanation:

1/4(8x+16y)

( 1 /4 )(8x+16y)

Distribute

( 1 /4 )(8x)+( 1 /4 )(16y)

=2x+4y

merry Christmas

the mean household income for a certain state is $71,000 with a standard deviation of $10,000 assuming a normal distribution about 95% of all households have an income over what amount?​

Answers

Answer:

About 95% of households have an income over $54,550

Step-by-step explanation:

95% is a probability of around 0.95

So we start by calculating the z-score with a probability of 0.95

We can use the standard normal distribution table for this

the z-score is -1.645

Mathematically;

z-score = (x-mean)/SD

-1.645 = (x-71,000)/10,000

10,000 * -1.645 = x-71,000

-16450 = x - 71000

x = 71,000 - 16450

x = 54,550

A bag contains 10 red, 3 blue, and 2 yellow marbles. If 3 marbles are selected one at a time with replacement, find the probability that all three are different colors

Answers

Answer:

4/225

Step-by-step explanation:

To get 3 marbles that all three are different colors, we need to get a red, blue, and yellow marble (not necessarily in that order)

So we get the probability of getting each with replacement (meaning they are all out of 15) and multiply them.

The probability of getting a red is:

10/15 = 2/3

The probability of getting a blue is:

3/15 = 1/5

The probability of getting a yellow is:

2/15

So to get all 3 different colors:

2/3 * 1/5 * 2/15 = 4/225

4 ( x+3) =16

HELP ! > DICLAIMER I KNOW THIS STUFF IM JUS BEING VERY LAZY .

Answers

Answer:

x=1

Step-by-step explanation:

Please help me on this

Answers

Answer:

25 mph

Step-by-step explanation:

Will GIVE BRAINLIEST IF CORRECT
The diagram shows a convex polygon.
Find the value of a.

Answers

Answer:

The value of a is 15.

Step-by-step explanation:

First, you have to find the total interior angles of the polygon using the formula, sum = (n-2)×180°, where n represents the number of sides :

sum = (n-2)×180°

sum = (5-2)×180°

sum = 540°

Given that the sum of the interior angle is 540° so in order to find the value of a, you have to add up all the angles in terms of a :

3a + 150 + 8a + 6a + 9a = 540

26a + 150 = 540

26a = 390

a = 390 ÷ 26

a = 15

Find the product: 1 1/4×5 3/5.

Answers

Answer:

7

1x4+1/4 x 5 3/5

4+1/4 x 5 3/5

5/4x5 3/5

5/4 x 25+3/5

5/4x38/5

1/4x28

28/4

7

Answer:

=7

Step-by-step explanation:

(1 1/4)(5 3/5)

=5/4 (5 3/5)

=5/4 (28/5)

=7

[tex]\frac{15}{3} = \frac{6}{x}[/tex]
what is x ??

Answers

the answer 1.2

when working with proportions you’re going to cross multiply then divide by the last number so
(3•6)divided by 15 to get 1.2
Yeah the answer is 1.2!

Triangle A'B'C is the image of ABC under a dilation

Answers

Answer: umm is there a picture?

Step-by-step explanation:

Write 1.2 as a fraction or mixed number.

Answers

Answer: 1 1/5

Step-by-step explanation:

Answer:

Mixed number- 1 and 1/5

Fraction- 12/10

Step-by-step explanation:

1.2 is read as 1 and 2 tenths. 1 and 2 tenths is the same as 1 and 2/10.

1 and 2/10 in simplest from is 1 and 1/5.

1 and 1/5 can also be written as 12/10.

Hope this helps :)

DAILY MATH QUESTIN!
CAN YOU SOLVE IT?

Answers

Answer:

2

Step-by-step explanation:

you solve the parentases first which equals 12 and then you take 2 times 12 which is 24 and 48 divided by 24 is 2

Answer:

288

Step-by-step explanation:

Start with what's in parentheses: 9 + 3 = 12Plug 12 in: 48 ÷ 2(12)48 ÷ 2 = 24Plug 24 in: 24(12)24(12) = 24 × 12 = 288

I hope this helps!

The table shows the volume V (in cubic feet) of a cube with a side length of x feet. Does the table represent a linear or nonlinear function? Explain your answer.

Answers

Answer:

Step-by-step explanation:Determine whether each table represents a linear or nonlinear function. ... Show. YOUY work. Nonlinear; as x increases by 1, y increases by a greater amount of ... A cube has a side length of s meters. ... (Example 4) Nonlinear; sample answer: If you graph the function, the ordered pairs (side length, volume) do not lie on a.

Shoes selling price is $1099. It costs $413.50 to make. What is the percent markup?

Answers

Answer:

166%

Step-by-step explanation:

Shoes selling price is $1099. It costs $413.50 to make. What is the percent markup?

1099/413.50=266%

266&-100%=166%

2. If 5x + 8 = 4, then 3x = ?
please answer guys​

Answers

5x + 8 = 4
5x = -4
x = -4/5
3(-4/5) = -2.4
Solution: 3x = -2.4

Answer:

3x = -2 2/5 or -2.4

Step-by-step explanation:

5x + 8 = 4

5x = 4 - 8

5x = -4

x = -4/5

3x = y  If x = -4/5

3 * -4/5 = y

-12/5 = y

-2 2/5 = y

Determine the approximate value of x using basic trigonometry.
(Round to the nearest hundredth..)

Answers

Answer:

The value of x = 35.62

Therefore, option C) is true.

Step-by-step explanation:

Given

Ф = 58°

hypotenuse = 42

To determine:

x = ?

We know that the trigonometric ratio

sin Ф = opposite / hypotenuse

Here:

The opposite of Ф = xФ = 58°hypotenuse = 42

so substituting the value

sin Ф = opposite / hypotenuse

sin 58° = x / 42

x = 42 × sin 58°

  = 35.62

Thus, the value of x = 35.62

Therefore, option C) is true.

What are the x and y intercept for the graph of 4x - 3y = -12

Answers

Answer:

(-3,0) = x and (0,4) = y

Step-by-step explanation:

Helppppppppppppppp pls

Answers

okay so basically y=-1

Based on the scatter plot below, which is a better prediction for x when y =3?​

Answers

X=374 hope this helps

There are 28 grape vines in each of the 52 rows of a vineyard. There are 24 rows of green grapes. All other rows are red grapes. How many red grape vines are in the orchard?

Answers

Answer:

784 red grape vines

Step-by-step explanation:

There are 28 grape vines in each of the 52 rows of a vineyard. There are 24 rows of green grapes. All other rows are red grapes. How many red grape vines are in the orchard?

In a vineyard

We have 52 rows

24 rows = Green grapes

The number of red grape rows =

52 rows - 24 rows

= 28 rows.

We are told are told: There are 28 grape vines in each of the 52 rows of a vineyard.

This means

1 row = 28 grape vines

Hence, the number of red grape vines that are in the orchard

1 row = 28 grape vines

28 rows = x grape vines

x = 28 × 28 grape vines

x = 784 red grape vines

tell me something?????????????

Answers

I am in the middle is class.

Solve for x.
7x + 15
30
24
44
Help ASAP

Answers

Answer:

x = 12

Step-by-step explanation:

Let a = the length of the missing side

[tex]\frac{24}{30} = \frac{44}{a}[/tex]

simplify: [tex]\frac{4}{5} = \frac{44}{a}[/tex]

use cross multiplication

4a = 220

a = 55

7x + 15 = 44 + 55

7x = 84

x = 12

Does anyone know how to do this?

Answers

The answer for your question is 13.

I will mark you brainlyest if you answer this
math science technology engineering arts mathematics STEAM STEAM STEAMMMM

Answers

Answer:

I dont get the question

Step-by-step explanation:

Answer:

STEM: science technology enginearing maths.

Step-by-step explanation:

i never used the art in this definition

What is x for a perimeter of 108 kilometers?
A. 53
B. 15
C. 18
D. 105

Answers

Answer:

c. 18

Step-by-step explanation:

4x + 5y = 7 and 8x + 5y = 9 *
Elimination

Answers

it should be y=2 after you eliminate

Answer:

Solve equation [2] for the variable y

[2] y = 8x + 7

// Plug this in for variable y in equation [1]

[1] 4x - 5•(8x+7) = -9

[1] -36x = 26

// Solve equation [1] for the variable x

[1] 36x = - 26

[1] x = - 13/18

// By now we know this much :

x = -13/18

y = 8x+7

// Use the x value to solve for y

y = 8(-13/18)+7 = 11/9

Solution :

{x,y} = {-13/18,11/9}

can someone please help me and explain how you got you answer please

Answers

y=2x+1

(2x) is the slope because the slope is going up the slope will be positive and the (1) is the y intercept which means where the slope crosses the vertical line

Answer:

A

Step-by-step explanation:

The equation for a graph is y=mx+b

The b is the y-intercept, or what the y-value is at x=0 (x is horizontal or left and right, y is vertical or up and down). At x=0, y is at 1, so it has to be +1.

The m is the slope, or the rise over run, which you solve by doing the equation (y2-y1)/(x2-x1).   You do this by taking one set of coordinate positions, let's say (0,1), and another, let's say (1,3).    The first set is your x1 and y1, and the second set is your x2 and y2. In this case, x1=0,y1=1,x2=1,y2=3

then do the equation. (3-1)/(1-0)   2/1=2, so the slope, or m, is 2.


Use the Distributive Property to on the following expression:
5 (3x + 26 - 9y + 10)

Answers

Answer:

15x -45y +180

Step-by-step explanation:

5(3x)= 15x

5(26)= 130

5(-9y)= -45y

5(10)= 50

combine like terms:

15x - 45y +180

15x +180-45y is the answer

During a math game, a team kept track of their answers. The following diagram describes the number of answers they got right to the number they got wrong.

What is the ratio of right answers to wrong answers?
Choose 1 answer:

Answers

Answer:

there is no additional information shown

How would i do this 243.79 in expanded form?

Please answer my question.

Answers

Answer:

200+40+3+0.7+0.09

Step-by-step explanation:

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