Mathematics Middle School

Please actually help me solve this! (:


A circle with a 12 inch diameter is folded in half and then folded in half again. What is the approximate area of the resulting shape? and what is the exact area of the shape?

Answers

Answer 1

Answer:

If the diameter is 12 inches, the radius is 6 inches, because the radius is half the diameter. When you fold the circle in half, the resulting figure has half the area.

Step-by-step explanation:

Related Questions

HELP MEH PLS ps the answer is not 2.5
Triplets, Justin, Jason, and Jacob are working on a school project. Justin can complete the project by himself in 6 hours, Jason can complete the project by himself in 9 hours, and Jacob can complete the project by himself in 8 hours. How long would it take the triplets to complete the project if they work together?

Answers

Answer: Approximately 2.483 hours

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

Explanation:

Justin can do the full project by himself in 6 hours. This means his rate is 1/6 of a project per hour. In other words, in one hour, he gets 1/6 of the project done.

Jason can do the full project in 9 hours, so his rate is 1/9 of a project per hour, if he works alone.

Jacob's rate is 1/8 of a project per hour since he can get the job done in 8 hours if he works alone.

-----------

So we have these unit rates

Justin's rate = 1/6Jason's rate = 1/9Jacob's rate = 1/8

The units for each rate is projects per hour.

The total rate is

1/6 + 1/9 + 1/8

12/72 + 8/72 + 9/72

(12+8+9)/72

29/27

If the three brothers work together, and no person slows down another, then the rate at which they work together is 29/72 projects per hour. In short, they get 29/72 of the project done in 1 hour.

Let x be the number of hours needed to get the project done if they work together. Multiplying this time value with the rate leads to the amount of the project done. We want the result to be 1 to indicate a full project is complete.

(rate)*(time) = amount done

(rate)*(time) = 1 full project

(29/72)*(x) = 1

x = 1*(72/29)

x = 72/29

x = 2.48275862068966

x = 2.483

It'll take about 2.483 hours to get the job done if they work together. Again this assumes that they don't get in each others way to slow each other down.

2.483 if you do the math and what the other comment says you’ll get it right

the ratio of horeses to chickens on a farm is 9:4 if theres a total of 39 animals how many chickens are on the farm

Answers

Answer: Should be 156 chickens

Step-by-step explanation:

4 times 39 iss 156

the answer is 156 because 4 times 39 will equal up to 156

Solve the equation.

f/6=2.5

Answers

Answer:

15

Step-by-step explanation:

2.5 x 6 = 15 so f = 15

Help-------------------------------

Answers

Answer:

a=70

b=14

c=33

Step-by-step explanation:

a= 140÷30= 70

B=140÷10=14

C=120÷36=33.333333 so that rounds to 33

A is 70 b is 14 and c is 33

Write answer on correct order so i would not be confused + no need for explanation

Answers

Answer:

Step-by-step explanation:

Si me gusta la música que no me he visto y no he tenido nada de eso pero me siento mal porque estoy interesada en el trabajo que tengo

Select the correct answer from each drop-down menu.
Amanda enjoys cycling. The graph shows the relationship between the number of hours she rides her bike, x, and the number of miles she covers.



The equation that represents the relationship between the number of hours she rides, x, and the distance she covers, y, is
.

Using the equation, the distance she would cover if she rode for 1.5 hours would be
miles.

Answers

Answer:

She rode her bike 21 miles

The ratio of girls to boys in Mrs.Johnson' class is 4 to 5. There are 12 girls in the class. What is the total number of students in Mrs.Johnson' class?

Answers

Answer:

27

Step-by-step explanation:

The answer is 27

Explanation
Step by step
Add girls to boys

Gonna give 50 points to one who answers all first correctly

Answers

Answer:

c, a, d, a, b

Step-by-step explanation:

1st picture is m=2/3 which is C
2nd picture is 20 miles per gallon aka A
3rd picture is D
4th picture is A
5th picture is 1/2 per cm which is B

Samuel has 9 whole pizzas. Marina has 18 slices that are each 1/2 of a pizza does Marina have more?

Answers

18 slices that are half’s
1/2*18= 9
meaning there are 9 whole slices
No, Marina does not have more since Samuel has the whole pie.

Answer:

Nope.

Step-by-step explanation:

If the slices are 1/2 of a pizza, putting them together equals 9 whole pizzas.

help asap, just help

Answers

Answer: p’s’ || Q’R’

Step-by-step explanation:

The height of most tigers are about 4.8 feet. What mixed number represents the average height of a tiger?

Answers

4 4/5. Check the linked photo for some explanation.

You estimate that a puppy weighs 12 pounds. The actual weight of the puppy is 14 pounds. Find the percent error. Round your answer to the nearest hundredth of a percent.

Answers

Answer: 14.29%

Step-by-step explanation:

12 / 14 = 0.857142857

100 - 85.7142857 = 14.2857143

Emily offers to take 10 of her friends to the football game on Friday night, but three of her friends don't want to come. Which two operations will be used to write an expression to model this scenario?

A. Subtraction and Multiplication
B. Division and Subtraction
C. Multiplication and Division
D. Addition and Division

Answers

Answer:

Should be A

Step-by-step explanation:

If 3 of her friends don't want to go... 10 - 3 = 7

And the multiplication could be multiplying ticket cost of 7 people?

A, i just did it in edge

a natural foods supplier is mixing up a rice blend that contains 27% wild rice. They already have 34 kilograms of a blend that contains 19% wild rice. To this, they will be adding a second blend that contains 59% wild rice. How much of the second blend should be added to obtain the desired 27% wild rice blend?

Answers

Answer:

yes

Step-by-step explanation:

Answer:

im not sure if this is right but i think that its 34% of the second blend.

Step-by-step explanation: I hope your having a good day!! :)

QUESTIONS BELOW NEED ANSWER ASAP PLSSS

Answers

B, C, and E. Look up corresponding angles for a detailed explanation and better understanding!

Congruent just means that they are equal, and just match the corresponding angles since they are equal to each other.

What's the banana worth?

Answers

Answer:

5!

Step-by-step explanation:

Looking at the first one, you have three watermelons. 36/3 is 12, so one watermelon is worth 12!

With the second one, you subtract 12 from 28 to get 16. Since there are two (peaches?), you divide 16 by two to get the peaches worth, which is 8.

That leaves you with the last one. I used the simple "8 - __ = 3", which got me the answer, 5.

I hope this helped!!

what is the answer for 8 4/7 ÷ 15

Answers

Answer:

4/7

Step-by-step explanation:

What is the point-slope from of a line that has a slope of 3 and passes through the point (-1, 4)

Answers

Try the one above you hope this helps

Complete the table for each value of k.

k

k=2 ⬜


k=3 ⬜

Answers

Answer:

Step-by-step explanation:

Value of k. Units. 8.9875517923(14)×109. N·m2/C2.

N, P2O5, and K2O costs $0.42, $0.50, .

The scale factor here is 3 ( k =3) and the distance from A to B is 8 units.

So k is 3 times 3 by 2 to get 6 and 3 by 3 to get 9

Justin is trying to determine if he has enough money to buy a new video game. The game cost $54.79. He started the day with $210 in his bank account. Looking at his receipts, he has spent $87.35 at a clothing store, $42.79 at a party store, and $25.68 at a gas station. What integer represents the amount he spent?

Answers

Answer:

He has spent $155.82

Step-by-step explanation:

87.35+42.79+25.68=155.82

Answer: He invested 155,82 dollars.

Step-by-step explanation:

The measures of two angles are 4x° and (2x + 12)°. What must be true if x = 13

A.
The angles are vertical.

B.
The angles are equal.

C.
The angles are complementary.

D.
The angles are supplementary.

Answers

yeas the answer is B

Answer:

B.

The angles are equal.

Step-by-step explanation:


What is the range and domain

Answers

Answer:

domain is 0 to infinity and range is 5 to infinity

Step-by-step explanation:

x is domain and y is range

The domain is all the values that go into a function, and the range is all the values that come out.

A painting has an area of 108 square inches. The dimensions of the painting are 12 and x + 3. What is the perimeter of the painting? helppppp meeeeeee

Answers

Answer:

42 inches square

Step-by-step explanation:

x=6

108/12=9

9-3=6

12+12+9+9=42

Monte Madeline real world srobleme
Complete the rate to senuity were presses that represent achat engression
Operation
Addition
Mutton
4.4
Dom
more than a
1 less than 5
A multiplied by 2
distributed into
groups of 4
Cents that to show how to write an expression to represent this word problem

Answers

Answer:

Step-by-step explah

nation:0uhtg6t6yygygffrfrdeedeedededwsw,swsws    edfrgthyujikol

PLEASE HELP ASAP!!! my class is about to ennnd!

Answers

Answer:

the first answer choice

A)

Step-by-step explanation:

Plz hurry more questions on the way

Answers

The answer is A, I’m pretty sure
yes it should be answer a

Solve the inequality. 2n/7 ≤ 4, but it needs to be in set-notation.

Answers

Answer

n < 14

Step-by-step explanation:

simplify 2n<28

2n/2<28/2

simplify n<14

Which of the following statements are true about 2 to the power of 8? (Select all that apply)

It can be read as "eight squared."
It has an exponent of 2.
It can be written as a multiplication problem with eight factors of 2.
It has a power of 256.
It can be read as "two raised to a power of eight."
It has a base of 2.
It has a power of 128.

Answers

Answer:

It can be read as "eight squared". It can be read as "two raised to the power of eight." It can be written as a multiplication problem with eight factors of 2.

Step-by-step explanation:

The answers are c,e,f “it can be written as a multiplication problem with eight factors of 2, it can be read as two raised to a power of eight, and it has a base of 2

Simplify:

–13.5a + 34.12b + 65.5a – 32.5b – 35.8a
A. 32.5a + 20.47b
B. 16.2a + 1.62b
C. –18.7a – 26b
D. 1.62a + 16.2b need the answer right away

Answers

Answer: 32.5a + 20.47b

Step-by-step explanation:

Answer:

It's A

Step-by-step explanation:

edg 2022

I WILL MAKE BRAINLIEST (please show work)
a) In the first event, the eighth graders are running a baton relay race with three other classmates. The team’s top speed for each leg is 56.81 seconds, 59.22 seconds, 57.39 seconds, and 60.11 seconds. Use the information to predict the team’s best time for the race.
If the team’s best time for the race is less than 4 minutes, then the eighth graders earn 40 points. If not, the seventh graders earn 40 points. Which grade should be awarded 40 points?

Answers

Answer:

233.53 s

Step-by-step explanation:

The sum of best times for the legs is ...

 56.81 +59.22 +57.39 +60.11 = 233.53 . . . seconds

Without additional information about the effects of training or the normal variation in times, this is the best prediction we can make.

The Answer is 233.53sec
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