Mathematics Middle School

Find the diameter of a circle if its circumference is 53.38 inches. Use π ≈ 3.14. Round to the nearest hundredth

Answers

Answer 1

Answer:16.9

Step-by-step explanation:

Answer 2
We know that the formula for C= πd. So to find the diameter of a circle we work backwards from its circumference. Division is the opposite of multiplying, so we divide its circumference by π: 53.38 / 3.14 = 17. To fully check: C= πd = π(17) = 53.38. The diameter is 17 inches. Hope this helps!

Related Questions

Use multiplication to find 40% of 165.
40% of 165 is ______

Answers

Answer:

66

Step-by-step explanation:

Pretty easy ngl

You multiply 40% by 165 to find the percentage: 40%x165 = 66!

Hope this helps <3

The number of calories burned by a 90-pound cyclist is proportional to the number of hours the cyclist rides. The equation to represent this relationship is y = 225x. What is the constant of proportionality?

Answers

it should be 135





hope this helps

The constant of proportionality is 225.

Given that,

The number of calories burned by a 90-pound cyclist is proportional to the number of hours the cyclist rides. The equation to represent this relationship is y = 225x

Based on the above information, the calculation is as follows:

y = kx

So here the constant should be 225.

Learn more: brainly.com/question/17429689

Which inequality is true?

Answers

Answer: The answer is -0.5<-0.25

Step-by-step explanation:

Of the 800 participants in a marathon , 120 are running to raise money for a cause.How many participants out of 100 are running for a cause?

Answers

Answer:

║∅║------------------Hello Friend----------------║∅║

Your answer should be:

15% is running for a cause.

120 out of 800 are running for a cause.

So out of 100,  120 / 8

= 15 are running for a cause.

15 out of 100 = 15%.

Step-by-step explanation:

I hope this helped.

(Brainliest would be appreciated)

Have a great day!

Answer:

15% is running for a cause.

Step-by-step explanation:

What the other person put as the explanation is accurate so I did not just rewrite it.

You can look at their answer for the explanation!

A grizzly bear’s top speed is about 36 mph. This speed makes the bear about 1 times as fast as an African elephant.

What is the top speed of an African elephant?
A. An African elephant can reach a top speed of about 48 mph because .
B. An African elephant can reach a top speed of about 39 mph because .
C. An African elephant can reach a top speed of about 34 mph because .
D. An African elephant can reach a top speed of about 24 mph because .

Answers

The answer im pretty sure is C

Answer:

The answer is A

Step-by-step explanation:

Because the answer says this speed makes the grizzly bear about 1 times as fast as an African elephant

pLEASE HELP ME
Carlos has $40 to spend on food for a barbeque. He wants to buy hot dogs and hamburgers and then buns for each. Carlos has already spent $31.56 on the hot dogs and hamburgers. Write and solve an equation to find, r, the amount of money Carlos can spend on rolls. Make sure to show all work. [3 points]
Equation:
Solution:

Answers

Answer:

40=31.56+r     r=8.44

Step-by-step explanation:

40   =  31.56 + r

-31.56 -31,56

8.44=x

Hope this helps :)

Plz help thank you :) Karen spent $32 on fruit at the grocery store. She spent a total of $40 at the store. What percentage of the total did she spend on fruit?

Answers

32 is 80% of 40. Karen spent 80% on fruit and 20% on misc items.
Answer: 80%

Answer:

she would have spent 80% of the total on fruit

Step-by-step explanation:

1.) k + 4n k = 3 and n = 7 *
5 points
2.) 3f - 6 - 4r when f = 7 and r =-5 *
5 points
3.) 9z + 8h + 2 when z = 3 and h = 7 *
5 points
4.) 3k + 4s when k = 6 and s = -2 *
5 points
5.) 5 + 7c + 9d when c = 3 and d = -3 *
5 points

Answers

1.) 31
2.) 35
3.)85
4.) 10
5.)-1
1. 31
2. -5
3. 85
4. 10
5. -1

Help me and you get good luck for the rest of 2021 XD
John bought 15 cookies and ate 3 of them. He ate ____% of the cookies. (Make sure to enter the answer using numbers only. Do not enter special characters such as the percent symbol.)

Answers

Answer:

John ate 20% of the cookies

Step-by-step explanation:

Answer:

i dont know if its right but i think 5% bc

Step-by-step explanation:

15 devied by 3 is 5 but i dont  know

Solve 1+1/2(y−2)=3/2x for y. Then tell whether x and y show direct variation.

Answers

Answer:

1+1/2(3x−2)=3/2x

y = 3x

pls help its a grade

Answers

Answer:

9

Step-by-step explanation:

3 divided by 9 is 3

3+2=5

Answer:

x=9

Step-by-step explanation:

The surface area of the box is 576 square units
the dimensions are 6 in tall 12 in wide and 12 in long
what is the surface area if scaled up by a factor of 10

Answers

Answer:

thats hard ill think

Step-by-step explanation:

Chandler's salary used to be $161,280. After changing the amount of time he works, he has begun earning $169,344. By what percent did Chandler's salary increase?

Ack please help with this, and please please don't just put some random answer, just to get points, I really have no idea how to do this.

Answers

Chandlers salary increased by 5 percent, to find this answer you take his new salary and divide it by its old and the decimal is the percentage increase
It increased 8,000 so that means it went up 8 percent sorry if I’m wrong.

If you cut the cylinder perpendicular to the base, meaning straight up and down, what 2D shape is created by the cross section ?
A. oval
B. rectangle
C. circle

Answers

Answer: rectangular I think

Step-by-step explanation: I’m not smart sorry if I did it wrong

Rectangle one reason there is a perpendicular cut up and down it’s a rectangle.

HELP ASAP Capone eats food at a constant rate. The formula below shows how many pounds of food he has remaining (y) after x days.

y=-1.2x+62

How much food does he have left after 15 days of eating? (round to the nearest tenth's place if necessary) (2 points)

Answers

I’m pretty sure that if y is pounds, and x is days than the answer would be 44?

I’m saying that it would be -1.2 x (15) +62 which is 44. Sorry if I’m wrong I’m kinda bad at math lol

Answer:

Step-by-step explanation:

M=-2

please help me with this i will mark brainliest

Answers

Answer:

w=93

Step-by-step explanation:

Answer:

= 93

Step-by-step explanation:

Sharon invested $5000 in a bond for 2 years. The total interest earned on the investment was $600. What was the interest rate on the investment?

Answers

Answer:

1200 i think thats right

Step-by-step explanation:

hope it helps

What was the underlying reason that many states wanted the Bill of Rights to be part of the constitution?
Please help! Tysm!

Answers

Answer:

The Bill of Rights was part of a compromise that the federalist made to ensure the proposed federal government could not impinge on the basic rights of it's citizens.

Step-by-step explanation:

Answer:

so the government could not take there rights and act like the king of england did they wanted protection and abilities that could be protected from the government

Step-by-step explanation:

Which of the following numbers can be expressed as a decimal that terminates?

3 over 2 , 2 over 3 , 3 over 4 , 5 over 7

A. 3 over 2 and 2 over 3
B. 3 over 4 and 5 over 7
C. 3 over 2 and 3 over 4
D. 2 over 3 and 5 over 7

Answers

D is the anwser had this on my test last week

Which fraction is easier to convert into a decimal?

11/18 or 43/50, explain

Answers

43/50 is easier because 50 is half of 100

Watch this

43/50. Since 50 is HALF of 100 so we multiply 2 by 50 which is 100. But since we multiplied by 2 for the denominator we have to do the same for the numerator so 43 x 2 is equal to 86.

So we get 86/100 which is 0.86

43/50 decimal 0.87

It's easier to turn into a decimal because both are bigger numbers and and closer to each other so it would be easier to divide

I NEED HELP ILL GIVE U BRAINS: PLZ

Answers

Answer:

40, 50, 60, 70, for the top, and 5 for the bottom

Step-by-step explanation:

A Japanese bullet train recently maintained an average speed of 317.5 km/h for a trip that lasted 3h 15 min.

a) Calculate the distance covered by the train on that trip.
b) At the same speed, how long would it take the train to travel 1000 km?

Answers

A. (317.5 km/h) * (3.15) = 1,000.125 km

Click on the correct answer.

The Malt Shop sells milkshakes at a 90% markup. If the Malt Shop pays $1.20 per milkshake, what is the price for customers?
A $1.08
B $1.31
C $2.10
D $2.28

Answers

Answer:

A, $1.08

Step-by-step explanation:

1.20 / 90 = 1.08

use a calculator

It’s d because 90% of 120 is 1.08 so you add the 1.08 to the 1.20 and you get 2.28 trust me it’s correct

welp
If 210 people said football was their favorite sport to watch, how many people were surveyed?

Answers

88 people who surveyed said football was their favorite

Answer:

840

Step-by-step explanation:

25% liked watching soccer

25% = 210

100%= More

100/25 * 210=840

pls help me i dont understand

Answers

Answer:

[tex]392[/tex] [tex]m^3[/tex]

Step-by-step explanation:

To find the volume you need to multiply the length, width and height. Our height is 7m, our width is 8m and our length is 7m, and when multiplying you get 392.

Answer:

The answer is 392

Step-by-step explanation:

you multiply 7 times 7 times 8=392

                   don't forget to give me brainliest

Identify C on the following diagram (will report if you are here for points)

Answers:

origin

x-axis

y-axis

quadrant I

Answers

Answer:

The x - axis

Step-by-step explanation:

The line that is horrizontal is always the x - axis

the answer to that one is 17 x 58 + 42 x y.

Mai had $14.50. She spent $4.35 at the snack bar and $5.25 at the arcade. What is the exact amount of money Mai has left?

1. $9.60
2. $10.60
3. $4.90
4. $5.90

Answers

Answer:

3. 4.90

Step-by-step explanation:

So its pretty simple all we need to do is

14.50-4.35-5.25= 4.90

I hope this helps

Please help me with this i might give you brainliest for this

Answers

Answer:

9 cm^2

Step-by-step explanation:

you would do 3 * 3, which would give you 9, then divide it by 2 to get 4.5, then add 4.5 to itself, and that is your answer

10 points if you answer this

Answers

Answer:

I would but I cant see the image. Comment on this answer the question I may be able to help you.

Step-by-step explanation:

Answer: 29, 2,64 i think

sorry if i am wrong

Step-by-step explanation:

pls mark brainliest or just press thanks

Sheila shoots 25 free throws in basketball practice. She makes 17. What percent of her free throws does Sheila make?
A. 17%
B. 34%
C. 43%
D.68%

Answers

Answer:

D

Step-by-step explanation:

because I know it is

why do I have to have 20 characters

68% Would appreciate if u marked me brainlyest
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