Mathematics Middle School

The mean of a set of data is 45 years. Find the missing numbers in the data set {40,45,48,?,54,?,45}. Explain the method or strategy you used.

please help me!!!​

Answers

Answer 1

Answer:

42 and 41

Step-by-step explanation:

So how I did it tbh I went everywere with this but I went backwards because the how you find the mean of something is adding all the values and then dividing them by the number of values(40+41+42+45+45+48+54=315, 315divided by 7=45) but anyway 45x7(because multiplication is the opposite of division)that equals 315-232 which is the answer to 40+45+48+54+45 which were the numbers that were given

Related Questions

Use the permutation formula to solve a problem when

P = n! C = n!
ⁿ ʸ ------ ⁿ ʳ ---------
(n-r)! r!(n-r)!


(i couldnt download the photo of the formula but i tried to do my best of making it out ;u;)

__

A. 1.36

B. 54

C. 3,276

D. 32,760

Answers

B B B B B B B B B B B B B B B B B

Rotation: 90% ccw about the origin

Answers

Use this formula: (x,y) to (-y,x)

maybe brainliest IF ITS RIGHT ;)
Which is different?

A.) What is the distance around the circle?
B.) What is the circumference of the circle?
C.) What is $\pi$ times the radius?
D.) What is $\pi$ times the diameter?

Find “both” answers. Round to the nearest hundredth, if necessary.

The answer to the "same" questions is about (BLANK) inches.

The answer to the "different" question is about (BLANK) inches.

also i didnt mean to click it yet

Answers

Answer:

The different one is C, pi times the radius

Step-by-step explanation:

"Different" value is 18.85 and the "same" value is 37.70.

The distance around a circle, circumference and pi times the diameter all finds the same value, but pi time the radius is only half of those values

If line m || line n and Ð2 measures 47°, what is the measure of Ð5?

Answers

Answer:

133°

hope it helps!! :))

I WILL GIVE BRAINLIEST! If =) represents 14 people, how many people would be represented =) (and a half) by ?

21 people
14 people
7 people
28 people

Answers

Answer:

21 people

Step-by-step explanation:

Lets define x as =). If x is 14, 1.5x will be 21.

Korina's window store made a mosaic for the community center. The mosaic had a 7 × 7 array of different color square tiles. If each tile is 1 3/4.what is the area in a mixed number

Answers

Step-by-step explanation:

[tex]1 \frac{3}{4}[/tex] converts to 1.75

7*1.75=12.25

12.25*12.25=150.0625

150.0625=[tex]150 \frac{1}{16}[/tex] square units

Answer:

150.0625= square units

Ste-by-step explanation:

converts to 1.75

7*1.75=12.25

12.25*12.25=150.0625

150.0625= square units

i need help on this how do i do this

Answers

Answer:

D 0.143

Step-by-step explanation:

this is the answer

Answer:

the answer should be d so I hope this helps you

What is the value of x?

Enter your answer in the box.

Answers

Answer:

Step-by-step explanation:

Remark

These two angles are supplementary. They make up the horizontal line. Supplementary angles add to 180 degrees.

Equation

x + 134 = 180

Solution and Answer

x + 134 = 180                    Subtract 134 from both sides

x + 134 - 134 = 180-134    Combine

Answer: x = 46

A. Change to Percent. Show your work.
1. 5.5 = _____
2. .75 = _____
3. .09 = _____
4. 5 1/2 = ___
5. 3/4 = _____
B. Change to Decimal
1. 2% = _____
2. 75% = _____
3. 1/2 = _____
4. 1/2 % = _____
5. 3 2/5 = _____

Answers

Answer:

1. 55%

2.7.5 %

3. 09%

4. 25.5 %

5. 1.33%

B

1 2.0

2. 7.5

3 1.2

4. 12

5. 6.5

Converting from a decimal to a percentage is done by multiplying the decimal value by 100 and adding To convert a percent to a decimal, we have to remove the percentage sign (%) and divide the number by 100. Dividing by 100 is the same as shifting the decimal

Please answer the question down below

Answers

Since the angles x & 62 are complimentary, their sum adds up to 90°

[tex]x + 62 = 90[/tex]

[tex]x = 90 - 62[/tex]

[tex]x = 28[/tex]

Answer:

28

Step-by-step explanation:

angle AOC is a right angle that equals 90 degreeds

90-62=28

homework ya know it

Answers

Answer:

81

Step-by-step explanation:

36 / 4 = 9

9*9 = 81

its a square

Answer:

81 sq cm

Step-by-step explanation:

36/4=9

9x9=81

81 sq cm

what is 2∙ 2∙ 2∙ 2∙ 2∙ 2∙ 2∙ 2∙ 2 in exponential form?
whoever answers correctly gets brainliest!

Answers

Answer:

[tex]2^9[/tex]

Step-by-step explanation:

Since there are nine 2s being multiplied by each other, we can represent this as [tex]2^9[/tex].

Answer:

2^9

Step-by-step explanation:

there are 9 2's and since it has to be in exponential form its 2^9

brainliest if its right

Answers

Answer:

6.28 meters

Step-by-step explanation:

Circumference = π x Diameter or 2 X π X Radius

3.14 X 2 = 6.28

Answer:

6.28 meters

Step-by-step explanation:

The area of the shaded face is 96 square centimeters.
What is the volume of the rectangular prism?

Answers

Answer:

I think the answer will be 32,768 cubic units..

Step-by-step explanation:

The volume formula is length times width times height and you say that the area of the shaded face is 96 square cm is better we divide

96/3 =32

So, we took the colume formula like this:

V= L x W x  H

  = 32 x 32 x 32

  =  1,024    x  32

  =   32,768 cubic units

It is 31,768… i am not sure if my calculation is right… maybe that top answer is right

Wendy paints a rectangular wall that is 10.5 feet tall and 9.2 feet wide. What is the area of the wall that she paints?

Answers

Answer:

96.6

Step-by-step explanation:

We know that the Area of the rectangle is,

A =Length x width

So the Area of the wall painted by Wendy will be,

A = 10.5 x 9.2 = 96.6

So; the area painted by Wendy will be 96.6 square feet.

-Mark me brainliest and a 5 star :D

96 and six we know that the area is a equals one laying eggs with

How do the experimental and theoretical probabilities compare?

Answers

Answer:

Empirical probability is the probability observed in the chart above. The 8 was rolled 8 times out of 50 rolls. Theoretical probability is based upon what is expected when rolling two dice as seen in the sum table at the right. The experiment rolled more 8s than would be expected theoretically

Step-by-step explanation:

hope this helps if not let me now

Answer:

The experiment rolled more 8s than would be expected theoretically

Step-by-step explanation:

Pls help me with this

Answers

Answer:

400 tiles

Step-by-step explanation:

40 x 400/100 = 160

Simply take the 160 divided by .40 (the decimal shows it’s a percentage).

160 / .40 = 400

Hope this helps! Have a great day!

Harry wants to paint his rectangular front door to his house. The dimensions to the door are 9 ft. by 4 ft. How much paint will Harry need?

6 square feet

36 square feet.

13 square feet

18 square feet

Answers

Answer:

36 square feet.

Step-by-step explanation:

Thanks for the Brainliest!

36 ft because you times 9•4 to get 36

Please help!! It has to be *TWO* angles
{An angle measures 150° less than the measure of its supplementary angle. What is the measure of each angle?}

Answers

Answer:

165° & 15°

Step-by-step explanation:

Let the first angle be 'a'

second angle be (a-150°)

a+(a-150°) = 180°

2a=180°+150°

2a=330°

a=330/2

a=165°

first angle is 165°

second angle is 165-150=15°

165 and 15 and I know this because I did it

(2.5a - 3) - 0.25 (a+8) simplified

:[ i'll give u all my points

Answers

Answer:

2.25a-5

Step-by-step explanation:

rate brainiest please!

hey hun! 2.25a-5 is the answer! have an amazing day!

Help me fast please pic of problem below!!!!! NEED ANSWER IN 3 MIN!!!

Answers

Answer:

1/3*5/4=5/12

Step-by-step explanation:

the common denetominter  for 3 and 4 is 12

3 goes into 12 4 times and 4 goes into 12 3 times

then you multiply the top by how many you have to mutiply by the bottom.

then you times that which equal 19/12 which in simplifest form is 5/12

at a carnival a game was set up so you would spin the spinner and roll a die. the spinner had 6 equal sized sections numbered 1-6 to win the game the spinner and the die had to land on the same number. what is the probability that you would win the game?

Answers

Answer:

Step-by-step explanation:

400

Use the number line to answer the question.

Answers

Answer:

2.23

Step-by-step explanation:

The reason why this is your answer is that this number is between 2 2/10 and 2 3/10. That means that turned into decimals, this number will be somewhere between 2.2-2.3

Now, we can see that this is 3 units away from 2 2/10 on the number line, which tells us that the decimal is 2.23

So hence, your answer is 2.23

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If you see someone without a smile, give them one of yours!

Thanks!

Have a great day!

:D

2.23 I did this one yesterday night

interpreting negative number part 1

Answers

the answer is C because its the right choice

A recipe calls for 2 fluid ounces of cooking oil. Nadine measures the oil into a measuring cup to the 14-cup mark.
Did Nadine pour the correct amount of oil?

A. No, she poured 1 ounce too much.


B. No, she poured 1 ounce too little.


C. No, she poured 0.5 ounce too little.


D. Yes, she poured the correct amount.

Answers

Answer:

D

Step-by-step explanation:

i answered from plato

i believe the correct answer is D :)

24/k=4
what is k
show your steps

Answers

Answer:

6

Step-by-step explanation:

cross multiplying 24/4 = k/1

6 = k

k = 6

Answer:
K=6

Steps:
24/4=6

Describe the relationship between the area of a parallelogram and the area of a triangle if they have the same base and the same height.

Answers

Answer:

the area of the triangle is half the area of parallelogram

Step-by-step explanation:

Which example is an inherited trait?

how fast you drive

eye color

accent

your food preferences

Answers

Eye color is an inherent trait

Answer:

Eye color

Step-by-step explanation:

please answer this!!!!! Nancy hears a report that the average price of gasoline is $2.82. she averages the prices of stations near her home. she finds the average price of gas to be $3.03. why are the averages different? ​

Answers

Answer:

 The average of a sample

Step-by-step explanation:

It will be the same as the average of the population if the chosen sample is a randomly chosen a sample of the entire population

help pls :( i will help you

Answers

Answer:

7 in thick

Step-by-step explanation:

There are two of the 2 1/4 books; and one of the 2 1/2 in. thick book.

2 1/4 + 2 1 /4 = 4 1/2 + 2 1 /2 = 7 in. thick

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