Mathematics Middle School

The following table shows the data collected from a random sample of 100 middle school students on the number of hours they do household chores every week: Weekly Duration of Household Chores Time (in hours) 0–1 2–3 4–5 6–7 Number of Students 32 64 3 1 There are 1,500 students in the school. Based on the sample proportion, how many students in the school would be expected to do household chores for at least two hours every week? 480 960 1,020 1,440

Answers

Answer 1

Answer:960

Step-by-step explanation:

Related Questions

help pls wil give brainllest to right anwser plss

Answers

Answer: Its C but I'm not 100 %

Step-by-step explanation:

the answer to this question would be C.

PLEASE HELP IM SO CONFUSED!!!

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Problem 1

The median weight of the Welsh corgis is 27 pounds. This is found in the table in row 1, column 2. Recall that the median is the middle most value, so that means 50% of the Welsh corgi weights will be less than 27 pounds, and also 50% of the weights are greater than 27 pounds.

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Problem 2

The Welsh corgis have the greater variation in weights. Why is this? There are two pieces of evidence:

The first of which is that the range for the first row (7) is larger than the range in the second row (2). The range is the difference between the max and min. The larger the range, the more spread out the data set will be.

The second piece of evidence is that the MAD (mean absolute deviation) for the Welsh corgis is larger compared to the MAD for the cocker spaniels group. The MAD is another way to measure the spread of a data set. Like the range, the larger the MAD gets, the more spread out the data is. It measures how far on average any given value is from the mean. It's similar to the standard deviation and variance, which are also measures of spread.

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Problem 3

Both dog breeds have the same mean value, and roughly the same median. Both the mean and median are measures of center. Based on just these two pieces of info alone, we could easily conclude that both dog groups have the same distribution more or less. Furthermore, we could conclude that both groups have roughly the same max weight value.

However, we discussed in problem 2 that the first group (Welsh corgi) is more spread out, so it's likely that could heavily imply that the min and max values are further from the center compared to the second group of dogs. Having a larger max would then mean that the corgi group has the largest weight.

In short, the answer is "Welsh corgi" due to this group having a greater spread, and that pushes the max further away from the center.

3 I’m sure it’s correct

PLS HELP ME I NEED THE ANSWER

Answers

Answer:

x^2 + 11x + 46 / 4(x+7)(x+5)

Step-by-step explanation:

If you want steps just comment :)

Circumference (Level 2)
Need help with this.

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.25 meters is the answer
.25 meters, correct answer :)

with ur solution as an inequality: If 3

Answers

Answer:

-3

Step-by-step explanation:

Your answer to the question would be -3 hope this helps

What is the value of N in the equation 4 x 3/4= N

Answers

The value of is 0.75 which is also 3/4. Grab a calculator and I’m sure it’s right.
The answer should be 3

!!!*BRAINLIEST*!!!

A city park in the shape of a rectangle measures 90 yards by 120 yards. A rectangular playground inside the park measures 18 yards by 24
yards. What is the area of the city park around the playground?

A. 432 square yards
B. 10,368 square yards
C. 504 square yards
D. 10,800 square yards

Answers

Answer:

I'm pretty sure the answer is [B] 10,368.

The answer is b (10,368)

15. Which of the following is NOT possible?
A. A regular polygon with interior angles adding up to 432
B. A regular polygon with interior angles adding up to 1260

Answers

B=1260.
(according to your question on #11, stating a regular polygon with interior angles adding up to 1260)
I believe it is A.
Please give me Brainliest

44. Find the length of the hypotenuse, c in this triangle. Give the answer in the form c=_
.

Answers

Answer:

c = 26

Step-by-step explanation:

a^2 + b^2 = c^2

24^2 + 10^2 = 676

[tex] \sqrt{676} = 26[/tex]

hope this'll help you!

here's your solution

by using Pythagoras theorem

=> h^2 = b^2 + p^2

=> h^2 = 24^2 + 10^2

=> h^2 = 576 + 100

=> h^2 = 676

=> h = √676

=> h = 26

= C = 26

hope it helps

Find the total surface area of the rectangular prism shown.

Answers

456 I think is the answer
456 is the answer your welcome

Determine if this is a fair game:
You play a game with the spinner shown. For every two spins, you earn 2 points for getting either an even-even or an odd-odd, but you lose 1 point for getting one of each.

A. unfair
B. fair

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What is an even even and an odd odd?
B. Fair because there is no way to “rig” it. there is an equivalent chance of getting either.

Which is a graph of a proportional relationship?

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The bottom left one. The line will always start in the corner.
bottom left where the y-intercept is 0

draw a new location of the pole barn on the graph below. Note that the stock tank is located at the origin.

Answers

Answer:

i think you reflect across the axis

Step-by-step explanation:

i learned this

: )

53. Find the value of x and y. Round your answer to two decimal places.

Answers

Answer:

x=4,90

y=8.66

Step-by-step explanation:

pythagoras thereom:

7²-5²=24

√24=4.90

10²-5²=75

√75=8.66

What is the slope of the line shown above?​

Answers

Answer:

1/5x

Step-by-step explanation:

the answer to your question is1/5x

help plsss , question in attachment

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7 is the answer the third one I believe because -7x-7 = 49
I think ten answers is 7

Ix+3l , if x>5

+15 pts

Answers

Cam you give the instructions???

If ur good at double box plots, pls help. Will choose brainliest

Answers

Answer:

Part A:

Movie A) The median is greater

Movie B)  Ages are more consistent

Step-by-step explanation:

A) Movie A is less variable

A grab-bag contains 30 packages worth $.65 each, 10 packages $.60 cents each, and 15 packages worth $.30 each. What is the expected value if you have to pay $.50 to pick one package at random?
A. about -$0.03
B. about $0.11
C. about -$0.11
D. about $0.03

Answers

The answer would be 0.03.
What I did was 50/15 which would get me 0.0333333333333. But since money can only the cents can only have two numbers. So it would be 0.03 as the answer. So it’s the answer d.

HELPPPPPPPP PLEASEEEEEEE ILL PAY

Answers

Answer:

Certain

- The number is positive

More likely than not

- The number is greater than 6

- The number is less than 10

As likely as not

- The number is multiple of 5

- The number is odd

Unlikely

- The number is 2 or 4

I hope that helps tho

What is the volume of the triangular prism below?

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You can start by finding the base and height, then you can divide that by 2. Sorry if it’s wrong!!

Pls help.., Match the described transformations of this figure with the figures that result.

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1. Reflected over the x- axis
2. Rotated 270 degrees counterclockwise
3. Reflected over the y- axis

Taylor saw sunglasses for $90, that were on sale for 10% off. She had her Employee
Discount card for an extra 10% off the SALE PRICE. How much will Taylor end up
paying?

Answers

Answer:

81 dollars

Step-by-step explanation:

Answer: %72 or %81

Step-by-step explanation: If you want to take off 10 percent from 91 the answer should be 81. If you are trying to take off 20 percent the answer should be $72.

no link need right answer

10 points

Answers

Answer:

The answer is B

Step-by-step explanation:

It is B because 34% of 70 is 23.8 and 23.8 rounded up is 24.

Hope this helps you!!!!! :)

How many triangles exist with the given angle measurements? 25, 65, 85

Answers

Answer:

0

Step-by-step explanation:

There are supposed to be 180 degrees in every triangle.

Therefore, no triangles exist.

12. Tiger Woods was 4 under par (-4) in the first round. He shot 2 over par (+2) in the second round. He shot the same score in the 3rd and 4th rounds. He finished at 8 under par ( -8). What did he shoot in the 3rd and 4th rounds?

Answers

I think -3; If the final par was -8, you would subtract (-4 + 2), you would get -6. Then you just divide it in half because it said he scored the same in rounds 3 and 4, leaving you with -3.

I'm lazy but have a lot of points

Answers

Answer: 37

Step-by-step explanation:

Well DCB is a right angle, and there is already half which is 53 degrees, subtract 90 by 53 and you will get your answer.

PLEASE HELP!! ITS JUST PERCENTAGES

Answers

Answer:

12a. 22.5%

12b. 77.5%

13. $4000

Step-by-step explanation:

12.

    a. 315/1400= 0.225 = 22.5%

    b. 1400-315=1085  1885/1400= 0.775 = 77.5%

13.

[tex]\frac{5}{100} = \frac{200}{4000}[/tex]

5/100 will be equal to 200/4000 so the hair stylist made $4000 in sales.

also if im wrong sorry!!

12a. 22.5%
12b. 77.5%
13. $4,000
HOPE I COULD HELP GOOD LUCK:))

52. Noah’s car has run out of gasoline. He walks 15 km west and then 8 km south looking for a gasoline station. If he is now h km directly from his starting point, find the value of h.

Answers

Use the Pythagorean theorem

H = sqrt (8^2 + 15^2)

H = sqrt(64 + 225)

H = sqrt(289)

H = 17 km

Which of the following would be found on a consumer’s credit report?

A. A savings account balance

B. Whether or not the consumer has made any late payments

C. The number of children the consumer has

D. Whether or not the consumer is approved for a loan

Answers

A. A savings account’s balance.
A is your answer i hope you pass.
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