Mathematics Middle School

Mrs. Summers polled the students in her 7th and 8th grade classes to determine the number of pets each student has at home. The results for both classes are shown in the dot plots below. Calculate the mean and mean absolute deviation of each sample. Then, complete the following question.

The mean number of pets for the 8th grade class is about 1.4 pets____ than the mean number of pets for the 7th grade class. This difference is about____ the mean absolute deviation of either group.

A. higher, lower?
B. same as, twice, half?

Mrs. Summers Polled The Students In Her 7th And 8th Grade Classes To Determine The Number Of Pets Each

Answers

Answer 1

Answer: A

Step-by-step explanation: mean in math terms mean everything added together on a graph we now have an 8th grade class and a 7th grade class the 7th-grade class has 67 pets 6+14+15+16+10+6=67 and the 8th-grade class has 121 pets 3+8+21+36+35+18=121 so it would be A.

the mean number of pets for the 8th-grade class is about 1.4 pets higher than the mean number of pets for the 7th grade class. This different is about lower the mean absolute deviation of either group.

P.S. pay attention in math claass kids

Related Questions

Please answer, I will mark "BRAINLY" if good

An architect is constructing a model in the shape of a triangle that has one side length of 9 centimeters and another side length of 8 centimeters.

Which statement describes the possible length of the third side?

A.It can be any length.


B.It can be any length less than 17 centimeters.


C.It can be any length greater than 1 centimeter.


D.It can be any length greater than 1 centimeter and less than 17 centimeters.

Answers

1.20 because you add
I think it’s B please mark Brainly if it’s correct

If your smart and can do MATH!!!

Answers

Umm, I’m doing this right now as well, not 100% sure, don’t click links!

Answer:

Step-by-step explanation:

Well, first of all the two angles listed on the diagram are alternate exterior angles. Since they are alt exterior angles, they must be congruent to one another. Congruent means: equal or the same.

1. So first I am going to form an equation.

(9x - 5) = (7x - 25)

2. Then I am going to solve.

(9x - 5) = (7x - 25)

3.  First, I am going to add 5 from both sides and solve.

(9x - 5) = (7x - 25)

      +5           +5

--------------------------

     9x = 7x - 30

4. Now I am going to subtract 7x from both sides.

  9x = 7x - 30

  - 7x   -7x

---------------------

  2x = 30

5. I am going to divide 2 from both sides, thus making x = 15

2x - 30

÷ 2   ÷ 2

--------------

x = 15 ( This is x, now all you have to do is plug this into each identified angle.

So, the first identified angle is  130 degrees

The second one is  also 130 degrees.

Remember, they are congruent so they have the same number (degrees

I need help to find the true value of x is -3

Answers

The answer is letter A
The answer is A hope this helps

Please solve 15x+1=10+2x

Answers

Answer:

x ≈ 0.69 or 9/13

Step-by-step explanation:

First we want to combine like terms.

15x + 1 = 10 + 2x

Subtract 2x from both sides.

13x + 1 = 10

Subtract 1 from both sides.

13x = 9

Divide both sides by 13 to isolate x.

x = 9/13

Divide.

x ≈ 0.69

Hope this helps!

Answer:

13x=9     x = 0.69

Step-by-step explanation:

i have a d in my class but i need it caught up to a b or an a asap so will anyone help me please? do like two sepperate answers for both but in one answering way

Answers

Answer: i do not under stand your question so edit your question and then i will edit my answer so you can get your answer

Step-by-step explanation:

HELP PLEASE!!!!!!!!!!!!!

Answers

5 1/2 on average hours

Please can someone help me I'm confused
(Brainliest to the person who gets it )

Answers

Answer:

$90 = 60p

p = $1.50

Step-by-step explanation:

Brainliest Please!

Answer:$ 10 dollars per cupcake

Step-by-step explanation:

if she bought cupcakes for $30 and she needs the profit more than $90

10 x 60 = 600 so that would be better

I have more questions from my homework, please help!

Answers

1. You will have to find the height first which could be done by using pythagoras theorem

split the 12 by half giving 6
a^2 = b^2 + c^2
13^2 = 6^2+c^2
169 = 36+c^2
c^2=169-36
c^2=133
c=sqrt133
c= 11.53

area of triangle
1/2 x b x h
1/2 x 6 x 11.53
34.59
34.5(3 sf)

Answer: for the first one the answer is 78, I don’t know the second answer

Step-by-step explanation:

Help Please :) Thanks

Answers

Answer:

line c

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

line b start at one end and ends at the other and all the dots are along it

Jaxon deposits $600 in an account that earns 2.5% simple interest. Emily deposits $600 in an account that earns 5% interest compounded annually. Who has more money when they close their account at the end of 3 years?

Answers

Answer:

Emily has more money

Step-by-step explanation:

She has more because if you divide the money by the percentage she will end up with more money

HaLp pLEaSE I NEeD tO GEt ThIS DoNE oR mY mUM WiLl bE MaD ThANkS

Answers

Answer:

B is the answer

the answer is b) 33/18 66/26

what would the variable (letter) equal?
12+b=22

b=
Expression or Equation:

Answers

your answer would be 10

Answer:

B=10

Step-by-step explanation:

how to figure this out

subtract 22 and 12

you get 10

so B=10

Estimate the solutions to the system. (The math problem and the answer choices are along with the pictures below)!!!!

Answers

Answer:

b (-6.5, 6.5), (6, -3)

Step-by-step explanation:

The Solutions are the points of intersection by the circle and the line. We can clearly tell that the point in quadrent four or bottem right intersects at 6, -3 and we can guess the top intersection. But because we know 6, -3 there is only one answer that can be right, b.

Felicia spends $50 on materials to make jewelry, and she plans on selling the pieces for $7 each. A friend donates $5 to get her started. Write an inequality to find the number of pieces of jewelry Felicia needs to sell and make a profit.

Answers

it would be 50=7x+5 (x=the number of pieces Felicia makes)

The volume of a pyramid is 50 3. What is the volume of a prism that has a congruent base
and is the same height as the pyramid?

Answers

Answer:

150 mm^3

Step-by-step explanation:

This is a pre-algebra 7th-grade math question, its kinda sucky that I cant actually write the math question, because of the random assortment of different characters,

Answers

Answer:

a or c

Step-by-step explanation:

Answer my question please! Dont answer if you dont know <3

Answers

Answer:

1/2+1/4= 3/4 or 0.75

Step-by-step explanation:

Answer:

3/4=.75

Step-by-step explanation:

help i dont know the formula for the triangle to find the answer its surface area n volume

Answers

Answer:

#4=10.5

#5=48

Step-by-step explanation:

The formula for the triangle for area is 1/2 time base times hight

The forumale fot the triangle for volume is 1/2 time base times hight

So for number #4 it will be 1/2 x 3 x 7

and number #5, it will be 1/2 x 8 x 12

i will give BRAINLIEST! help open the picture!​

Answers

Answer:

5/2

Step-by-step explanation:

the answer is 5/2 if i got it wront i’m super sorry

Evaluate the expression for the given value of the variable. the sum of y/3 and 4y/9 when y =18

Answers

y/3=6 and 4y/9=8 and since it asks for the sum the ANSWER IS 14!


PLEASE HELP! NO LINKS AND DONT ANSWER JUST FOR POINTS OR U WILL BE REPORTED! I Will give brainiest!!!!!!

Answers

A=60 B=60 c=60 d=90 e=90 f=60 h=60
i=90 j=90 k=120 m=60 n=120 o=90
p=90 q=60 r=120 s=120 t=60 u=90 v=90 w=150 x=40 y=150 z=30

Will give braily
Four people equally share 3/4 of a whole pizza. What
fractional part of the whole pizza does each person
receive?
A) 1/4
B) 1/5
C) 3/16
D) 3/20

Answers

Answer:

Each person will receive 3/20 portion of the whole pizza! Now 3 quarter of a pizza=3/4th of a pizza. That is 3/4 of full= 3/4×100=75 percent of the pizza is being shared by 5 people. Now share of 5 persons=75/100, hence share of each person=75/100÷5=15/100 or 3/20th equal portion of the whole pizza.

Step-by-step explanation:

I think the answer is: A) 1/4

no bots answer please and will give brainliest

Answers

Answer:

27

Step-by-step explanation:

on one face you see 3 x 3 (top face)

3 x 3 = 9

and if you look at another side (right one is what im looking at) you will see 3 x 3 again so that means this will be equal to 3 cubed (3^3) or 3 x 3 x 3

if you do 9 x 3

9 x 3 = 27

that equals the volume of the cube

27 units cubed

27 is your answer hope thjs helps☺️

Do any of y'all know how to do this I'm so confused and I need help ​plz

Answers

Answer:

8.625 ft, second option

Step-by-step explanation:

For the rectangles:

1.5 * 2.5 = 3.75

So, 3.75 ft for one rectangle

But there are two rectangles, so:

3.75 * 2 = 7.5

So now the area is 7.5ft for both rectangle.

For the triangle:

Triangle formula - 1/2 × Base × Height

In this case both the base and the height are 1.5 so next step is multiplying by plugging in the numbers

1/2 * 1.5 * 1.5 = 1.125

So the area for the triangle is 1.125 ft

Total area:

Now you just add the numbers you got which is 7.5 and 1.125

7.5 + 1.125 = 8.625

The area is 8.625 ft

Find the surface area- and show ur work pls

Answers

Answer:

240

Step-by-step explanation:

Anyone willing to help? Need the answer ASAP.

Answers

Answer:the 12 ounce box is better to buy

Step-by-step explanation:

1.80 times 2= $3.60

12 ounces times 2= 24 ounces

Answer:

The 20 oz box is better

Step-by-step explanation:

Please help me I will give brainliest

Answers

Do not click the link they will hack

PLZPLZ PLZ PLZ PLZ PLZ HELP ME I AM CONFUSED ND DONT KNOW WHAT TO DO!! PLZ SHOW UR WORK SHOW UR WORK!!!

Answers

I think it’s C I’m not quite sure though, good luck:)

plssssssssssssssssssssssssssssss help SAP

Answers

Answer:

1. Week 1

2. 0 to 6 with a range of 6.

3. Three

4. 2 and 4

5. 1 to 10 with a range of 9

6. Four

Step-by-step explanation:

k a h o o t anybody im b o r e d

Answers

Answer:

YEAAAA LES G O O O O

Step-by-step explanation:

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