A social worker examines the level of aggression (measured on a 100-point scale) of four groups of individuals before they begin anger management classes. Using the weighted mean, determine the overall mean level of aggression for all four groups.
Group 1 82; 15
Group 2 87; 12
Group 3 93; 22
Group 4 79; 71

Answers

Answer 1

For this solution, we are assuming that the 1st number listed for each group is the mean aggression for that group, and the 2nd number is the number of participants of that group. 1. Find the total number of participants: 15 + 12 + 22 + 71 = 120 participants across all 4 groups 2. Find the total number of aggression points (group mean * group participants): 82(15) + 87(12) + 93(22) + 79(71) = 9929 total aggression points 3. Divide total aggression points by number of participants to find overall mean: 9929/120 = 82.742 or approximately 83.

Related Questions

Angela ordered 2 glass paperweights. The volume of each paperweight is 5 cubic inches, and the density of the glass is 1.5 ounces per cubic inch. Angela can use the calculation below to find the total weight of her order.

2×(5×1.5)

How can Angela simplify the calculation using only the associative property of multiplication?

Answers

The associative property states that you can multiply numbers no matter how they're grouped, meaning that we can erase the parenthesis and make it 2*5*1.5. That way, it's easier to figure out 2*5*1.5 than 5*1.5 first then that multiplied by 2.

Answer:

(2 times 5) then times 1.5

Step-by-step explanation:

i took K12 test

In the expression, 8.92 x (10 x 10 x 10), which number is the base?

a) 8.92
b) 10
c) 3
d) 8

Answers

The answer to this question is A

Sandra and her friend went to the candy store. Each of the purchased a bag of jelly beans. Sandra's bag weighed 1.25 pounds. Her friend's bag weighed 1.05 pounds. Who bought more candy?

Answers

Sandra did, her bag was .20 pounds heavier than her friend’s.

Sandra she has .20 more that her friend

A number between 40 to 60. When it is divided by 5 it leaves a remainder of 3. When it is divided by 4, it leaves a remainder of 1.

Answers

tge answer is 53 because 53÷5 is 10 remainder 3 and 53÷4 is 13 remainder 1

If a square with a side of six is cut into three congruent rectangles, what is the perimeter of one of those rectangles

Answers

16 should be the correct answer

First of all, it is hard to know how to do this problem if you do not understand all the terms being used.

Square= a shape with four sides of equal length that meet to form four right angles.
Congruent rectangles = rectangles that are exactly the same in size and shape.
Perimeter = in this case, it is the sum of all the sides of the rectangle

The question asks you to divide a square with sides that are 6 units long into 3 congruent rectangles.
If it is hard to picture this in your head, I recommend that you draw a picture. I drew one for you so you can see how mine looks. In the picture, you can see I cut one side of the square into 3 equal pieces. So, we divide the total side length by the number of equal divisions to get the heights of the rectangles. I got height (h)= 2 units. To find the width of the rectangles, you can merely use the length of a side of the square. So, the width(w)=6 units. So, then to get the perimeter of a rectangle you add up all the sides. Perimeter= h+h+w+w= 2+2+6+6= 16 units. I got rectangle perimeter=16 units for my final answer. Hope this helped! Comment on this answer if you still have any questions or you think I messed up. :)

A square field with an area of 2000 square ft is to be enclosed by a fence. The slabs are 5ft long.
How many slabs will be purchased?

Answers

You should divide 2000 by 5.

Ben has 3 times as many guppies as goldfish. If he has a total of 20 fish, how may guppies does he have?

Answers

15 guppies 5 goldfish ,

the running back for the Bulldogs football team carried the ball nine times for a total loss of 15 3/4 yards find the average change in the field position on each run

Answers

The average change in the field position on each run is. -1 3/4

1/4(7+3g)=-g/8
Please help, algebra homework!?!!!

Answers

g = -2
hope this helps

132.4 devided to te nearest tenth

Answers

Are you trying to find the nearest tenth to 132.4?

Find two numbers whose LCM is 90

Answers

To find the LCM for 90 since it has a zero, the first LCM is going to be 10. And 10 multiplied by 9 is 90. You can also divide the 90 by 5 and get 18.

One way working this out is to find all the numbers that go into 90 by listing all the pairs of numbers that multiply to give 90

1 × 90
2 × 45
3 × 30
6 × 15
9 × 10

From here we can do trial and error:

Let's choose any two factors, say 2 and 3
By listing their multiples, we will find their LCM is 6, not 90

Then choose any two factors, say 3 and 6
By listing their multiples, we will find their LCM is 6, not 90

We can try some bigger number, say 45 and 90
by listing their multiples, we will find their LCM 90

Answer: 45 and 90

The area, a, of a trapezoid is calculated using the formula A= 1\2(b+c)h, where h is the height of the trapezoid and b and c are the base of the trapezoid. Rearrange the formula to solve for h

Answers

The answer is: h= (2A)/(b+c)

Final answer:

To rearrange the formula for the area of a trapezoid to solve for the height, divide both sides of the equation by (b+c)/2. The rearranged formula is h = 2A/(b+c).

Explanation:

The formula for the area of a trapezoid is given by A= 1/2(b+c)h, where A is the area, h is the height, and b and c are the lengths of the two bases. To rearrange this formula to solve for h (the height), you need to isolate h on one side of the equation. The rearranged formula would look as follows: h = 2A/(b+c).

To obtain this, we divided both sides of the equation by (b+c)/2. This gives us a new formula to find the height of the trapezoid given the area and the lengths of the two bases.

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How do you turn 0.65 decimal into a fraction or mixed number into simplest form

Answers

put 65 over 100 so it's a fraction and simplify from there i think

If it's 65/100 that is equal to 65%

Write each product using an exponent. 10x10=

Answers

Answer: 100

Step-by-step explanation:10x10=100

Round off 863 to one significant figure

Answers

example: 863 is the number, when you pass more of 50 is for the other number and if you didn't pass the 50 is for 00.
ex. more than 851 is 900 and lees then 850 is 800
so the answer is 900

What is the solution to the inequality 2(x + 3) ≥ –10 – 4x? solve step by step, please.

Answers

2(x + 3) > = -10 - 4x...distribute thru the parenthesis
2x + 6 > = -10 - 4x ....add 4x to both sides
2x + 4x + 6 > = -10 - 4x + 4x...simplify
6x + 6 > = -10 ...subtract 6 from both sides
6x + 6 - 6 > = -10 - 6...simplify
6x > = -16...divide both sides by 6
(6/6)x = -16/6
x = - 8/3 <==

What number is 46% of 150

Answers

46% of 150...turn ur percent to a decimal..." of " means multiply
0.46(150) = 69 <==

The word [tex]"of"[/tex] means [tex]multiply [/tex]

So, lets workout this problem to find our [tex]answer[/tex]

Just remember the [tex]percentage [/tex] will be going out of [tex]100[/tex]

Now, [tex] \frac{46}{100} (150) [/tex]

[tex] \frac{46/2}{100/2} = \frac{23}{50} [/tex]

[tex] \frac{23}{50}(100) [/tex]

[tex]Answer: 69 [/tex]

Good luck on your assignment and enjoy your day!

~[tex]MeIsKaitlyn :)[/tex]

at movies you order 3 boxes of popcorn and a bottle of water the cost of the bottle of water is $1.75 your total cost is 9.25 write and solve an equation to find the cost of one box of popcorn

Answers

9.25-1.75=3p
9.25-1.75=7.50
7.50/3=2.50
$2.50

9.25-1.75=7.50 7.50/3=x

What is 68127000000000000 in scientific notation

Answers

68127000000000000 in scientific notation is:

6.8127 *10^16

68127000000000000 can be written in scientific notation as 6.8127 × 10¹⁶

What is Scientific Notation?

Scientific Notation is a method used in mathematics to express large numbers in standard form so that they will be easier to calculate.

This standard form is written in decimal form multiplied by the power of the corresponding values after the first digit.

From the given information;

68127000000000000 can be written in scientific notation as:

= 6.8127 × 10¹⁶

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3.6 divided by 24 equals what?

Answers

the answer to your question is .15

The value of the expression is 3/20.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

3.6 ÷ 24

= 3.6/24

= 36/240

= 9/60

= 3/20

Thus,

The value of the expression is 3/20.

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A giraffe can run up to 46.93 feet per second.how far could a giraffe run in 1.8 seconds? Justify your answer.

Answers

if they run 46.93 in 1 second multiply that by 1.8

46.93 x 1.8 = 84.474 feet

round the answer as needed

5 paintings 3 more sculptures than mosaics 16 pieces in all how many sculptures and how many mosaics

Answers

Hello! I'm Arianna and i would love to help! Here is the answer 8 mosaics Hope I Helped! And Have a Great day <3

The correct answer you should be looking for is 8!
Hoped this helped! =)

Which letter below is NOT made only of line segments?

1. F
2. M
3. D
4. X

Answers

3. D because there's a curve

The sum of two numbers is 26. Four less than four times the smaller number is equal to the larger number x. Find the larger number.

Answers

Hey there!

This question just wants you to create an equation and solve. In this case, the larger number is equal to x. To find the smaller number, we would need to multiply x by 4 and subtract 4 from it. This means that the smaller number is equal to (4x – 4). You add the two numbers, x and (4x – 4), to get 26. Your final equation is:

x + (4x – 4) = 26

Now, just solve.

x + 4x – 4 = 26
(5x – 4) + 4 = (26) + 4
(5x) ÷ 5 = (30) ÷ 5
x = 6

Finally, just plug in 6 for both numbers to get your answer.

(6) + (4(6) – 4) = 26
6 + 20 = 26

Your two numbers are 6 and 20.

Hope this helped you out! :-)

Final answer:

To find the larger number, two equations were formed based on the given problem and solved sequentially. The smaller number was found to be 6, and using this value, the larger number was determined to be 20.

Explanation:

The sum of two numbers is given as 26. This information forms our first equation: s + l = 26, where s is the smaller number and l is the larger number.

We are also told that four less than four times the smaller number is equal to the larger number. This gives us our second equation: 4s - 4 = l.

Now, we can use substitution to solve for the larger number. First, rewrite the second equation in terms of s: l = 4s - 4. Then, substitute this expression for l into the first equation: s + (4s - 4) = 26.

Solving for s, we combine like terms: 5s - 4 = 26. Then, we add 4 to both sides to isolate the terms with s: 5s = 30. Dividing both sides by 5 gives us the smaller number: s = 6.

Finally, we find the larger number by substituting s back into the second equation: l = 4(6) - 4. This operation gives us the larger number l = 24 - 4, hence l = 20.

The larger number is 20.

Lena's guest house is 15 m long and 12 m wide. How long is the diagonal of the house?

Answers

draw dagarm (see attachment)

we've got a right triangle
the legs are 12 and 15
and the hypohuse is the diagonal

remember, for any right tirnalge
when the legs are a and b and hytponuse is c then
a²+b²=c²

so
12²+15²=c²
144+225=c²
369=c²
sqrt both sides
√369=c
3√41=c
the diagonal is 3√41 m or about 19.2m

A rancher has a roll of fencing to enclose a rectangular area. The table shows how the area that the rancher can enclose with the fencing depends on the width of the rectangle.

Width (w)ft Area (A) ft2
10 900
20 1,600
30 2,100

Which quadratic equation gives the area A of the rectangle in square feet given its width in w feet?

A. A(w)= -w to the power of 2+200w
B. A(w)= -w to the power of 2+100w
C. A(w)= w to the power of 2+40w
D. A(w)= w to the power of 2+90w

Answers

10, 900
and then the second one
B

Checking for each option

Option A: [tex]A(w) = -w^2+200w[/tex]

Substitute w = 10 and check if we'd get 900 as the answer
[tex]A(10) = -(10)^2+200(10) = -100+2000 = 1900[/tex]

Option B: [tex]A(w) = -w^2+100w[/tex]
Substitute w = 10 and check if we'd get 900 as the answer
[tex]A(10)=-(10)^2+100(10)=-100+1000=900[/tex]

Option C: [tex]A(w)=w^2+40w[/tex]
Substitute w = 10 and check if we'd get 900 as the answer
[tex]A(10) = 10^2+40(10)=100+400=500[/tex]

Option D: [tex]A(w) = w^2+90w[/tex]
Substitue w = 10 and check if we'd get 900 as the answer
[tex]A(10)=10^2+90(10) = 100+900=1000[/tex]

Answer: Option B

Which input value produces the same output value for the two functions on the graph?
a)-1
b)0
c)3
d)4

Answers

According to the graph, at x = 4 the graphs of the two functions intersect, meaning that the two functions have the same output value (which is 3).

Answer:

Step-by-step explanation:

D) x=4

if the measure of arc GH = 110 and the measure of arc EF =55 calculate m angleGDH

Answers

If I remember My geometry correctly
you add GH AND EF then divide 2

Monday's temperature was 6 degree the low temperature was -3 degree what was the difference between the high and low temperatures

Answers

The the difference between the high and low temperatures was 9 degrees.

To find the difference between two numbers, you subtract them from eachother. 6 - -3 is the same as 6+3, so the difference between the two temperatures is 9 degrees.

Which has the same value as 15 tens
?

Answers

15 tens = 15*10 = 150

so 150 has the same value

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