Mathematics Middle School

The principal observes 8th grade the following day. Of the 120 students, 42 brought their lunch from home, 72 purchased lunches, and 6 brought a lunch from home and purchased an ice cream.

Explain how the principal could use the numbers from 7th grade to predict the 8th grade possibilities.

Answers

Answer 1

I think

Step-by-step explanation:

by finding each chart such as if there are 120 7th graders and 180 8th graders he can use the same numbers from the 7th graders and compare each percentage to the 8th-grade kids and get a close enough answer

Related Questions

What is the volume of the rectangular prism below?

Answers

Answer:

10 multiply by 8 multiply by 14

= 1120 in³

Answer:

the answer choice is C

Step-by-step explanation:

your welcome

The population of a small town, P, as a function of time, t, in years past 1940 is given below.

P = 2,794 + 325t

For which of the following years was the population of the town 11,569?

A. 1977
B. 1937
C. 1927
D. 1967

Answers

The answer is 1967. Plug in 11,569 for P. subtract 2,794 from 11,569. Divide 325 by 8,775. The answer is 27 plus 1940= 1967

The answer is 1967.:

Step-by-step explanation:

Find the mean absolute deviation for the data set.

{3, 5, 6, 3, 2, 2, 1, 0, 0, 4, 7, 4, 5, 5, 6}

Answers

If the mean of the data set is 3.533. Then the mean absolute deviation for the data set will be 1.831.

How do find the mean absolute deviation of discrete data?

Suppose the data specified is of n sized as

[tex]\rm x_1, x_2, \cdots , x_n[/tex]

Let this data's mean will be μ

Then, the mean absolute deviation of this data is the mean of the absolute differences of the observations from the mean of the data they belong to.

It is calculated as:

[tex]\rm M.A.D = \dfrac{\sum_{i=1}^n|x_i - \mu|}{n}[/tex]

The data set is given below.

3, 5, 6, 3, 2, 2, 1, 0, 0, 4, 7, 4, 5, 5, 6

Then the mean of the data will be

Mean = (3 + 5 + 6 + 3 + 2  + 2 + 1 + 0 + 0 + 4 + 7 + 4 + 5 + 5 + 6)/15

Mean = 53/15

Mean = 3.533

Then the mean absolute deviation for the data set will be

[tex]\rm M.A.D = \dfrac{|3-3.533| + |5-3.533| + |6 - 3.533| + |3 - 3.533| + ...+|6-3.533|}{15}[/tex]

M.A.D. = 27.4665/15

M.A.D. = 1.831111

More about the mean absolute deviation link is given below.

https://brainly.com/question/10258446

#SPJ1

Solve the following inequality for m. Include your number line.

4(2m-8)>48

Answers

4(2-8) = -24

number line is included btw in the photo
The correct answer is 4(2-8)= -24

Brainliest! Help, thanks! Answer quickly

What is the lowest common denominator for these fractions?

4/5 and 3/10

A.5
B.10

Answers

Answer:

B.10

Step-by-step explanation:

answer B 10 just add the 5 plus 5 :)

which square root does the point on the number line BEST represent?

Answers

square root of 3 because it equals 1.73
Answer: √3

Detailed Explanation:

√3 = 1.73

Therefore, the point on the number line best represents the Sq. Root of 3.

the questionnnnnnnnnn

Answers

Answer:

1. 7

2. 97

Step-by-step explanation:

3 is the bottom length of the triangle and its the same for both sides so that leaves us with the square in the middle, since the bottom of the triangle is 3 and the top of the trapezoid is 10 we subtract 3 from 10 and get 7 and since a square has all identical sides we know the area of the square is 7 x 7 = 49 + 48 (which is the two triangles) = 97

I need help with this question, please. I will give brainliest

Answers

Answer:

336 cm to the power of 2

Step-by-step explanation:

AB=√6 to the power of 2 plus 8 to the power of 2=√100=10cm

surface area:

12xb plus 6x8x 1/2x2 plus 128 plus 12x10

=72 plus 48 plus 9b plus 120

=336 cm to the power of 2

Hope this helps!!

the total surface area is 336 ^ 2

Please I need help



Point Y is the center of the circle. Which line segment is congruent to line segment XY?

A) line segment UZ

B) line segment ZU

C) line segments ZU and YZ

D) line segments UY and ZY

Answers

Answer:

D

Step-by-step explanation:

they are all congruent in length.

Answer:

D) line segments UY and ZY

Step-by-step explanation:

Congruent is when things are the same size and shape. Therefore, the only line segments that are congruent to line segment XY are line segments UY and ZY.

FIRST CORRECT ANSWER GETS BRAINLIEST

Answers

The answer is 5s - 10t + 7
Following the order of operations (PEMDAS):

Step 1: simplify what’s inside the parentheses. Since we don’t know either variable s or t, we can’t simplify any further from what it already is.

Step 2: distribute the 5 to each of the terms inside the parentheses. This gets you (5s - 10t)

Step 3: arrange your final answer:
7 + 5s - 10t

You can’t simplify any more unless you know one the the variables so you are left with this.

Paolo is using his grandmother’s cookie recipe. He always doubles the amount of chocolate chips and oats. The recipe calls for 2 1/2 cups of chocolate chips. The total amount of chips and oats after doubling is 6 1/3 cups. Write an equation to find the original amount of oats, x, in the recipe.

Answers

Answer:

5cups

Step-by-step explanation:

How much is 5 cents + 3 dimes+ four 5 cents + 2 quaters equals ?

I'm trying to make a dollar with these pennies

Answers

5 + 30 + 20 + 50 = $1.05
Your answer will be 1.05.

Answer this RIGHHT and you'll get Brainliest

Answers

Answer:

Circle is closed and Graph shaded to the left

Step-by-step explanation:

ill give brainly but hurry.

Answers

Answer:

2nd Option

Step-by-step explanation:

The 2nd option is the correct one

please help me dis is my last one

Answers

Answer:
y=18

Explanation:
input x=5
rule ——-> 4x-2
=4x5-2
=20-2
=18 {scrutinize}
output y=18
answer is y= 19 lol listen to ur phone

Which answer best describes the shape of this distribution?

A. bell-shaped

B. uniform

C. skewed right

D. skewed left

Answers

Answer:

B) Uniform

As it is identical if you split it in half

B. Uniform cause it’s the best description

(IMAGE ATTACHED)Y'all please help, I need this done by tomorrow, all these need to be done in substitution, if you can only solve one that's ok, I just need the work to be shown. Thank you so much! :)

Answers

Answer:

x=4 and y=7

Step-by-step explanation:

For question 9, it's difficult to explain, so here's an image of what you're supposed to do (:

X=4 and Y=7 9 is kinda blocked off can’t see the full question but good luck on the rest

14.36: Tyler has entered a buffet line in which he chooses one kind of meat, two different vegetables, and one dessert from the selections below. If the order of food items is not important, how many different meals might he choose? Meat beef, chicken, pork
Vegetables: baked beans, corn, potatoes, tomatoes
Dessert:brownies, chocolate cake, chocolate pudding, ice cream

Answers

Answer:

72 different meal options

Step-by-step explanation:

We have a choice of

1. Meat - 1 of 3 options2. Vegetables - 2 of 4 options3. Dessert - 1 of 4 options

Total number of meal combinations is

Meat*Vegetables*Dessert = 3C1*4C2*4C1 = 3*6*4 = 72

A bag contains:

5 red marbles
6 blue marbles
3 green marbles
2 yellow marbles
4 purple marbles



A student draws a random marble from the bag, records its color, and returns it to the bag. The student makes a total of 60 draws. What is a reasonable prediction for the number of times a purple marble will be drawn?

A.
12

B.
10

C.
8

D.
15

Answers

Answer:

15

Step-by-step explanation:

60/4 which is the chance it gets out of being drawn

Using the concept of probability, the reasonable prediction for the number of times a purple marble will be drawn is 12 times (option A).

What is a reasonable prediction for the number of times a purple marble will be drawn?

To predict the number of times a purple marble will be drawn, we can use the concept of probability. The probability of drawing a purple marble in a single draw is the number of purple marbles (4) divided by the total number of marbles (5 + 6 + 3 + 2 + 4 = 20).

Probability of drawing a purple marble = 4 / 20 = 1/5

Since the student makes a total of 60 draws and each draw is independent (the marble is returned to the bag after each draw), we can use the concept of expected value to predict the number of times a purple marble will be drawn.

Expected value = Total number of draws × Probability of drawing a purple marble

Expected number of times a purple marble will be drawn = 60 × (1/5) = 12

Learn more on probability here;

https://brainly.com/question/25870256

#SPJ2

A composite figure is shown, what is the volume of the composite figure?

Answers

The answer should be (504)

The temperature dropped 2 °F every hour for 12 hours. What was the total number of degrees the temperature changed in the 12 hours?

24 degrees
14 degrees
-24 degrees
-2 degrees

Answers

Answer:

-24 degrees

Step-by-step explanation:

To find the total change in temperature, multiply 12 by -2, since it dropped 2 degrees each hour for 12 hours.

12*(-2)

= -24

This means -24°F was the total number of degrees the temperature dropped.

Answer:

The question mentions the keyword, "temperature drops" meaning we need to alternatively subtract.

[tex]t = -2 * 12[/tex]

If we know that positive 2 times 12 is 24, we know -2 times 12 will be negative 24°, because any negative number times a positive number is always a negative number.

54 points and brainly hurry up please

What is the interquartile range of this data set?

{18, 17, 10, 25, 20, 20, 30, 18, 18, 30, 25}



Enter the answer in the box.

Answers

The interquartile range of the data set is 7.

Step-by-step explanation:

The given set of data is {18 , 17 , 10 , 25 , 20 , 20 , 30 , 18 , 18 , 30 , 25}

Arrange the data in ascending order:

10 , 17 , 18 , 18 , 18 , 20 , 20 , 25 , 25 , 30 , 30

Divide the data in two equal parts:

(10 , 17 , 18 , 18 , 18), 20 ,(20 , 25 , 25 , 30 , 30)

Divide each parenthesis in 2 equal parts:

(10 , 17), 18 ,(18 , 18), 20 ,(20 , 25), 25 ,(30 , 30)

Now we can say that,

Q₁ = 18 , Median = 20 , Q3 = 25

Interquartile rage of a data is :

I.Q.R. = Q3 - Q1

I.Q.R. = 25-18 = 7

Therefore the interquartile range of the data set is 7.

Yea what they said. 8>

Can anyone help out with this?? Girl needs some help. Its angles. :D

Answers

Answer:

135 degrees

Step-by-step explanation:

angle JGH and FGJ make angle FGH. So, you would add 70 + 60 to get the angle measure of FGH.

70+60= 135 degrees

Find the surface area of the right triangular prism (above) using its net (below).

Answers

1. 7•4=28
2. 7•5=35
3. 7•3=21
4. 4•3÷2=6
5. 4•3÷2=6
6. 28+35+21+6+6=96
Answer: 96 units^2

WILL MARK AS BRAINLEST!!!!!!!!!! The table shows the relationship “Construction workers make 13 dollars per hour.”

A 2-column table with 5 rows. Column 2 is labeled Hours with entries 1, 2, 3, 4, 5. Column 2 is labeled Dollars with entries 13, 26, 39, 52, 65.

Which statements are correct? Select all that apply.
The amount of dollars earned causes a change in the number of hours worked.
The number of hours worked causes a change in the amount of dollars earned.
d is the independent variable.
d is the dependent variable.
h is the independent variable.
h is the dependent variable.

Answers

It’s hours times 13=dollars so I’m pretty sure H is the independent variable and D is the dependent variable.
13 dollars per hour
13*x= dollars

What is the volume of the prism

Answers

Answer:

40.625

Step-by-step explanation: Convert the mixed numbers into decimals and multiply them all (6.5 x 2.5 x 2.5 = 40.625

Answer:

the answer is 40.625

Step-by-step explanation:

Jenn's carpool ride has been late 4 days out of the past 20 days. What is the estimated probability, based on relative frequency, that her ride will be late tomorrow

Answers

Answer:

20% chance

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

Can somebody help me extra points
Complete the statement below about the two figures.

Answers

Answer:

NOT CONGRUENT - DIFFERENT

Step-by-step explanation:

For triangles to be congruent the angles have to be the same, in other words, any transformation would work, but a completely different triangle would not.

Answer:

Not similar Not congruent

Step-by-step explanation:

:)

What are your plans? What are your goals or dreams? Where do you see yourself 10 years from now?

Answers

Answer: I always wanted to see what will be my life in the future, what will be my

career and what will I become? As I reflected my childhood I have many

dreams and aspirations that I would like to accomplish within the next ten

years to come. In ten years, I can see myself having many of my goal

accomplished, if not accomplished, I will be working on accomplishing those

goals to fulfil my life. We all know when growing up that we all wanted that

fairy tale ending with the house, car, kids, and the dog. Ten years from now

plan to be raising my children, coming out of college with several degrees,

and being happy. They say in one's life we all make choices, but in the end,

our choices make us. You're about to embark with me unto the long, curvy

road of my life, and Watch upon it as it unfolds through my eyes. This is my

life as I see it will be ten years from now. I have most of it planned out

already. This is my story.

Step-by-step explanation:

I see my self doing big things in life and helping myself and other people achieve their dreams.

please help i need to finish this

Answers

Answer:

Angle< PQO and Angle < OQP

Step-by-step explanation:

The angle you are naming would be in the middle.

Answer: Angle PQO and OQP

Step by step explanation
I did this and got it right :)
Other Questions
CAN ANYONE PLEASE HELP! Infer an advantage of using passive or active solar systems.A.These systems have no need to access the sun for most of the day.B.The blocking of sunlight by structures has no impact on these systems.C.These systems release low amounts of carbon dioxide or other pollutants.D.There is no need for a backup system on cloudy days. QUESTION 1 [10] The accompanying diagram shows the graph of f(x) = a* B 1.1. Write down the coordinate of A; explain. 1.2. How can we tell that: 0 < a < 1? 1.3. Determine a if B is the point (4;). (3) (2) 1.4. Determine the equation of the graph obtained if the graph above is reflected about the y-axis 1.5. Write down the coordinates of the point of intersection of the two graphs. (2 (2) (1) Help ASAP NEED ANSWER NOW I really need help on this What was a characteristic of the Congressional plan for Reconstruction?A. Many Confederate leaders would be allowed to return to office.B. Requirements for voter registration would be revised.C. Black Codes that limited the rights of African Americans would be ignored.D. All southerners who took an oath of loyalty to the United States would be pardoned. I could really use some help with this crossword :( I was absent all week and need the extra credit Find the greatest common factor of 12y4 and 7y3. She would also like to tour genoa as well, which would cost her 60.85. if the conversion rate of us dollars to euros at the time of karis visit is 1:0.6859, how will this affect her budget? round all dollar values to the nearest cent. a. kari can see genoa and have $60.33 left in her budget. b. kari can see genoa and have $41.38 left in her budget. c. kari has almost exactly enough left in her budget to see genoa. d. kari cannot afford to see genoa, because it would put her $84.48 over budget. What is the sum of the following equation: (9+5)*43x(23,550-32)*655 Read an excerpt from "Television and the Public Interest" and answer the question. The speech was delivered by Newton N. Minow, chairman of the Federal Communications Commission, to the nations television executives in 1961.[1] But when television is bad, nothing is worse. I invite each of you to sit down in front of your television set when your station goes on the air and stay there, for a day, without a book, without a magazine, without a newspaper, without a profit and loss sheet or a rating book to distract you. Keep your eyes glued to that set until the station signs off. I can assure you that what you will observe is a vast wasteland.[2] You will see a procession of game shows, formula comedies about totally unbelievable families, blood and thunder, mayhem, violence, sadism, murder, western bad men, western good men, private eyes, gangsters, more violence, and cartoons. And endlessly, commercialsmany screaming, cajoling, and offending. And most of all, boredom. True, you'll see a few things you will enjoy. But they will be very, very few. And if you think I exaggerate, I only ask you to try it.[3] Is there one person in this room who claims that broadcasting can't do better? Well a glance at next season's proposed programming can give us little heart. Of 73 and 1/2 hours of prime evening time, the networks have tentatively scheduled 59 hours of categories of action-adventure, situation comedy, variety, quiz, and movies. Is there one network president in this room who claims he can't do better?[4] The best estimates indicate that during the hours of 5 to 6 P.M. sixty percent of your audience is composed of children under twelve. And most young children today, believe it or not, spend as much time watching television as they do in the schoolroom. I repeatlet that sink in, ladies and gentlemenmost young children today spend as much time watching television as they do in the schoolroom. It used to be said that there were three great influences on a child: home, school, and church. Today, there is a fourth great influence, and you ladies and gentlemen in this room control it.[5] If parents, teachers, and ministers conducted their responsibilities by following the ratings, children would have a steady diet of ice cream, school holidays, and no Sunday school. What about your responsibilities? Is there no room on television to teach, to inform, to uplift, to stretch, to enlarge the capacities of our children? Is there no room for programs deepening their understanding of children in other lands? There are some fine children's shows, but they are drowned out in the massive doses of cartoons, violence, and more violence. Must these be your trademarks? Search your consciences and see if you cannot offer more to your young beneficiaries whose future you guide so many hours each and every day [6] You must provide a wider range of choices, more diversity, more alternatives. It is not enough to cater to the nation's whims; you must also serve the nation's needs. And I would add this: that if some of you persist in a relentless search for the highest rating and the lowest common denominator, you may very well lose your audience. Because the people are wise, wiser than some of the broadcastersand politiciansthink.Select the two sentences that support the argument that television should not merely entertain audiences. "And endlessly, commercialsmany screaming, cajoling, and offending. And most of all, boredom." (paragraph 2) "Today, there is a fourth great influence, and you ladies and gentlemen in this room control it." (paragraph 4) "Search your consciences and see if you cannot offer more to your young beneficiaries whose future you guide so many hours each and every day " (paragraph 5) "It is not enough to cater to the nation's whims; you must also serve the nation's needs." (paragraph 6) "Because the people are wise, wiser than some of the broadcastersand politiciansthink." (paragraph 6) Can someone help me with 2 financial literacy questions Formulating an Investigative QuestionIn this lab, you will use a magnet and a simple circuit toexamine the concepts of electricity and magnetism. Thinkabout how these ideas can be shown experimentally.In the space below, write a scientific question to addressby doing this experiment. Arab Israeli Conflict : Diverse PerspectiveSome of the following statements reflect the views of Arab Palestinians, some are more in line with the thinking of Israelis, and some are facts that both can agree on. Next to each one type AP for Arab Palestianians,I for Isrealis or B if both would agree to that statement.The PLO as a governing body Israel is the homeland for the Jews, we are Gods people. Since 70 AD, we, the Arabs, have lived here. Moses led the Hebrews here in Biblical times. We started an Intifada in 1987 and 2000 because our voice wasnt being heard. Arafat was our first leader. Rabin was a leader of our country. Resolution 242 was passed to divide this area between the two sides. We accepted Resolution 242. We rejected Resolution 242. Rabin and Arafat signed a peace treaty in Washington D.C.We agreed to give land back in exchange for peace. We are the majority in the occupied territories. We lost all our land after the Six Day War. We were denied access to the Suez Canal by Egypt. Black September attempted to get the world talking about our situation. We were part of the Ottoman Empire. We were attacked the day after declaring our independence. We built a wall to separate them from us. We currently control nearly all the land. how did hitlers leadership affect the battle of stalingrad Please help i give brainliest, show the work though. Susan is buying 5 and a half pies from the market. Write this amount as a mixed number, improper fraction, decimal and percent. Can you help me please Freshwater leeches attach to fish and suck blood from the fish for extended periods of time. This results in sores on the fish that often become infected.what is This relationship is best described as i will mark brainliest if less than 10 min im in junior high. What was one immediate effect of the Korean War, and what has been one long-term difference between North Korea and South Korea after the war? Does participant possess appropriate labor market information?.