Mathematics Middle School

A teacher surveys a sample of students from Lake Middle School. He asks the students where they’d like to go for a field trip. He records these results: 80 choose the aquarium. 60 choose the science center. 30 choose the planetarium. 40 choose the farm. The teacher wants to figure out the relative frequency of a student choosing the aquarium. He will then estimate how many students out of all 1000 at the school are likely to choose the aquarium. Answer the questions to solve the problem. 1. How many students did the teacher survey? Write your answer in the space below. 2. What is the relative frequency of a student choosing the aquarium? Give your answer as a decimal rounded to the nearest hundredth. Show your work. Write your answer in the space below. 3. Suppose the teacher surveys one student at random. Based on the survey results, what is the estimated probability that the student chooses the aquarium? Write your answer in the space below. 4) Write and solve a proportion that the teacher can use to estimate how many students in the whole school would choose the aquarium. Show your work. Write your answer in the space below.

Answers

Answer 1

Answer:

https://brainly.in/question/30560329

Step-by-step explanation:

Those are the answers I found on brainly

Related Questions

What is the median of these numbers :
65,56,76,65,52,89,41

Answers

Answer:

Step-by-step explanation:

You find the one equally in the center of the numbers after they are in order.

65 is the answer of the median n don’t know what else to right cause I need answers too

PLEASE HELP
Find the volume of a cylinder that has the following dimensions. Do not round your answer. (Use 3.14 for π.)

radius: 5 cm
height: 0.25 m

volume = !!!!cm3!!!!

Answers

Answer:

i'm pretty sure 1.96×10-3 m³

is the right answer

V = pi r^2 h
Substitute in the values
= 3.14 x 5^2 x 0.25
= 19.625
Hope this helps, have a nice day! :)

Write an equation that you can use to solve for the height of the triangle (x). Notice that the perimeter is 48 feet.

A. 48 = 12 + 20 + x
B. 48 = 12(x)/2
C. 48 = 12(x) (20)
D. 48 = 12 + 20 - x

Answers

The answer is A.48=12+20+x

A IS answer 48 = 12 + 20 + x

Solve the x
-9 (1/2x - 3) = 45

Answers

Answer:

−

Step-by-step explanation:

Answer:

x = -4

Step-by-step explanation:

-9 (1/2x - 3) = 45

Divide both sides by -9

1/2x - 3 = -5

Add 3 to both sides

1/2x = -2

multiply both sides by 2

x = -4

Please if you do both I will give brainiest (to the first one to answer)

Answers

Answer:

Answer to first:

Yes, x is a rational number.Yes, y is a rational number.Y is larger

Answer to second:

I know that -3.4 is a rational number because it is an integer or decimal not equal to zero.

Step-by-step explanation:

Explanations to first:

0.147 is rational because you can write it out.0.147 bar is rational because it can be written as a fraction.Y is larger because the numbers keep repeating, so it has a larger value than 0.147.

can someone pls help

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Because they equal the same thing

Find the area of the circle. Round your answer to the nearest hundredth. 15 in.

Answers

well nearest hundredth is 3

The answer is 94.2
If you multiply 3.14 by 15 then multiply that result by 2, you get 94.2.
I hope this helps

I need help on this darn dang question "The streets of Millston are laid out like a grid, with each square being the same size. The distance from the movie theater to a restaurant is 1/2 mile along Cabot Street. If there are Exactly 4 blocks between the two locations, how long is each block?"

Answers

Answer:

Each block is 1/8 of a mile long.

Step-by-step explanation:

i believe it will be 1/8

Please help me with #5
Simple Interest: formula I=PRT
P=$ or principal
R=%
T=time(in years-divide by 12 if given months)
“Any absurd answers will be reported”

Answers

The answer is C, 25% increase. To find the increase, subtract starting value (780) from the final value (975). It equals out to be 195. Divide 195 by the starting value which turns out to be 0.25. Then, multiply 0.25 by 100 which equals out to be 25.

What is the mean of these numbers :
101,102,100,101,99

Answers

Answer:

100.6

Step-by-step explanation:

Answer: adding by 1 then subtract by 1 then add 1 then subtract 2

Step-by-step explanation:

the sides of a rectangle are in the ratio 2:5. if the longer side of the rectangle is 25.5 in., what are it's width, perimeter, and area ?

Answers

Answer: The width of the rectangle is 10.2 inches, the perimeter is 71.4 inches, the area is 260.1 inches.

Step-by-step explanation:

25.5/5=5.1

5.1*2=10.2

The width is 10.2 inches

25.5*2+10.2*2=71.4

The perimeter is 71.4 inches

20.5*10.2=260.1

The area is 260.1

Width=10.2 in. Perimeter=71.4 in. Area=and 260.1 in.

Step-by-step explanation:

hope it helps

PLZ ANSWER WORTH 10 points!!!! ANswer correct and I will give brainiest! ( I keep my words)

Answers

Answer: Part 1 (2.35 X M)

Step-by-step explanation: Part 2 she would have saved $28.20 in one year if she started with nothing.

You toss one coin and roll one number cube. What is the probability the coin is heads and a 3 is rolled?

Answers

Answer:

1/6 for the cube and 1/2 for the coin

it would be 4/6 or 2/3 both are the same

Step-by-step explanation: sorry if im wrong btw

Answer:

Hello! answer: 1/12

Step-by-step explanation:

Heres a picture explaining the answer!

What is the scale factor of the dilation?

Is the dilation an enlargement or a reduction?

Answers

Answers:

Scale Factor = 3/4

This is a reduction

======================================================

Explanation:

Let's focus on the point R(4,4). That's the preimage point for the image of R ' (3,3).

Let k be the scale factor. We multiply this value of k by the x,y coordinates of point R to jump to R '

we have x = 4 jump to 4k which is the x coordinate of point R'

So we set 4k equal to 3 and solve for k to get k = 3/4. The scale factor is 3/4 or 0.75

We have a reduction since the image triangle T'R'S' is smaller compared to the preimage triangle TRS. We can see that we have a reduction by looking at the scale factor. If 0 < k < 1, then we have a reduction. If k > 1, then we have an enlargement instead. So we go with the first option since 0 < 3/4 < 1 or you could say 0 < 0.75 < 1.

Answer:

A reduction (think shrinking) is a dilation that creates a smaller image, and an enlargement is a dilation that creates a larger image

Step-by-step explanation:

!Help Help Help! lols

Answers

C. Brad is twice as more as her

Why is woman of color being discriminated in the workplace an important topic. I need yall's opinions

Answers

Step-by-step explanation:

BECAUSE THEY ARE RACIST AS FRICK!!

Answer:

Because any women in the workplace is being douted, because she is a female. But because she is a woman of color they don't think she can do it as better as a man could.

Step-by-step explanation:

Find the volume of the composite solid. Round your answer to the nearest tenth.

Answers

Formula to find the volume: πr² * hRadius = 3. (Not 6, that's the diameter)Height = 11π9*11 = 311.0 in³

plz help and explain

Answers

Answer:

A regular polygon

B irregular polygon

C regular polygon

D not one

E regular one

F not one

Step-by-step explanation:

Hazel has 1 3\4 cups of rice. It takes 1 \8cup of rice to make one cup of chicken and rice soup. How many cups of chicken and rice soup can Hazel make if she uses all of her rice?

Answers

Answer: 3 1/8
Explanation: you do 13/4 - 1/8= 3 1/9

I think the answer is 3 1/8 ---> emphasis on the I tHiNk :^

Urgent answer correctly plz
Read the whole thing first

a bat and ball cost one dollar and ten cents. The bat costs one dollar more than the ball. How much does the ball cost?"
Every day, the patch of lilly pads doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake?" 6÷2(1+2)
DDid oyu read it through just answer with Hello Bestie

Answers

the bat will cost one dollar because if the ball and the bat together cost 1.10 $ and the bat cost 1.00 more you will have 10 cents left over which will be how much the ball cost

it will take 24 takes for the lily pads to cover half of the lake because 48÷ 2 is 24

please help me with this math

Answers

Answer:

i think is correct

Step-by-step explanation:

you need connect figure.

you need to connect the figure then youll have the answer

Frodo ran 2 3/5 miles in 7/12 of an hour. How many miles can Frodo run in one full hour?

Answers

To find how many miles he ran, we need to convert 7/12 of an hour to a full hour. To get a full hour, we must multiply 7/12 by 12/7. Knowing this, we need to multiply 2 3/5 miles by 12/7.

2 3/5 * 12/7

This would be

156/35 miles or 4 16/35 miles

I need help on this also could I get an explanation on how you solved it? Please don't take my points ill get u banned. :P

Answers

Answer:

1/2

Step-by-step explanation:

4 is the total right and 5/7 make it half so it will be 1/2. hope this helps!

1/16
Hope this helps, have a good day
^^

A very exclusive college except approximately 2 students out of 5 applicants. If there were 250 total applicants, how many students were not accepted?

Answers

Answer:

150 students were not accepted.

Step-by-step explanation:

The ratio right now is 2 to 5 you would need to find an equal ratio with 250 as the second number. 5 is a factor of 250 because if you do 5 x 50 you get 250. So you would multiply 2 by 50 as well which is 100. The ratio is 100 to 250 with 100 being the students being accepted and 250 being the total number of people that applied. Though the question is asking for those that did not pass. If 100 people passed then everyone else out of 250 didn't and 250 - 100 is 150.

What is the mean of these numbers :
6,7,7,8,8,4,7,6,4,6,8,7

Answers

Answer:6.5

Step-by-step explanation:

It is 6.5 because 6+7+7+8+8+4+7+6+4+6+8+7=78 and because their is 12 numbers than 78/12=6.5

The median is 7
Organize them smallest to largest and find the middle

plz last cry for help

Answers

Answer:

for the largest angle:

360-108-60-60= 132

since it is isosceles:

180-132=48

48 ÷ 2= 24

b=24

A rectangular pyramid was sliced perpendicular to its base and through its vertex. What is the shape of the cross section shown in the figure?

A rectangular pyramid. The cross section is a triangle.

a triangle that has the same dimensions as one of the sides of the pyramid
a triangle that does not have the same dimensions as one of the sides of the pyramid
a parallelogram that is not a rectangle
a rectangle

Answers

Option C:

A triangle that does not have the same dimension as one of the sides of pyramid.

Because....

There is a rectangular Pyramid, which is sliced perpendicular to its base and through its vertex.

Option C is the answer

find the surface area of this triangular prism. be sure to include the correct unit in your answer. please helppp, thank youu!

Answers

I got 226.79. You could round the answer if necessary.

What is the median of these numbers :
90, 95, 92, 93, 91, 97

Answers

Answer:92.5

Step-by-step explanation:

The middle numbers are 92 and 93 and then you add 92+93=185 and 185/2=92.5

The median is 92.5

Work :

1) Place the numbers in order
90, 91, 92, 93, 95, 97

2) There are two medians (92 & 93)

3) Add both numbers then divide by 2, because it’s two numbers and you need 1 median

92+93 = 185/2 = 92.5

Solve the following equation when a = 3 and b = 2.
5a^2 − 10b + 9b =

Answers

The answer for this problem is 43

5(3)^2-10(2)+9(2)
15^2-20+18
225-20+18
=223

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