(urgent please help!!!!)in computing the mean of 8 numbers, a student mistakenly used 17 instead of 25 as one of the numbers and obtained 20 as the mean. find the correct mean.

Answers

Answer 1
i believe the correct mean is 21!
Answer 2

Answer: 21

Step-by-step explanation:

The student's mean of the 8 numbers is 20; the total of the numbers will be

8 x 20 = 160

If we take out the 17 the  total will be 160 - 17 = 143

If we then replace the 17 with 25 the total rises to 168.

168 divided by 8 = 21


Related Questions

I've wasted 42 points already. Can someone PLZ just answer my Question and stop wasting my points. PLz, this is due. I need help

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Step-by-step explanation:

You can put the value of x into the equation to solve for y. Hopes this works.

Need answer PLS will give brainiest

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Answer:

n=-6

Step-by-step explanation:

Find the surface area of each prism. Show your work for full credit!

Answers

Answer:

1   15 x 9 x 14 = 1890

2   10 x 17 x 24 x 21 =85680

Step-by-step explanation:

What is the equation of the line that passes through the point (5, – 7) and
has a slope of o?

Answers

Answer:

The answer is

[tex]y = - 7[/tex]

Answer:

y = -7

Step-by-step explanation:

Hey :)

y = mx + b

*m is equal to the slope...

y = (0)x + b

Plug in the point you have...

-7 = (0) (5) + b

-7 = 0 + b

-7 = b

y = (0)x - 7

y = -7

Ignore the (0)x because anything multiplied by 0 is 0 so there's no point in having 0x in your equation.

Answer: y = -7

Hope this helps :)

Alan has read ​10% of a book. He has 81 more pages to finish. How many pages are there in the​ book?

Answers

Answer:

90

Step-by-step explanation:

100%-10%=90%

90%->81

10%->9

100%->9+81=90

The length of CD is 12 units. C'D' is the image of CD under a dilation with a scale factor of k.
Which of these are true? Choose all that are correct.

Answers

The length of CD is 24 units.

In a fish tank, there are 9 bluefish and 7 redfish.
How many fewer redfish than bluefish are there?

Answers

Answer:

arkadaşlar bu şeyler

Türkçeye nasıl cevriliyor

There are 2 fewer redfish than bluefish

9-7=2

What is the answer to this and how do I do it???

Answers

Answer

C

You just reverse the way you read the question.

ME RESULVEN ESTO POR FA
6 -1
-3 -1
9+3
-3. -7
2.8
-5.+3
-10:-5
18: -3
-9 : 9

Answers

Answer:

1) 5

2) -4

3) 12

4) -10

5) 2.8

6)-2

7) 2

8) -6

9) -1

In an election, 7/20 of the voters voted for a new school tax. What is the probability that a randomly selected voter did not vote for the tax? Express your answer as a percentage.

Answers

Answer:

65%

Step-by-step explanation:

so there were 20 total voters. 20-7 = 13 that did not vote for the tax

13/20= . 65 = 65%

Find the value of x:

Answers

Answer:

x = 17°

Step-by-step explanation:

2x - 4= 30° {being vertically opposite angles }

2x = 30° + 4°

2x = 34°

x = 17°

Hope it will help :)

Is Janelle correct? Yes, because the lines are not parallel. Yes, because the lines will intersect. No, because the lines are in the same plane. No, because the lines are perpendicular.

Answers

Answer:

Step-by-step explanation:

No, because the lines are in the same plane.

Niccolo runs the first half of a race in 23.08 seconds and the second half of the race in 27.92 seconds. What is Niccolo's total time for the race?

Answers

Answer:

51 seconds

Step-by-step explanation:

23.08+27.92=51.00

Answer:

51 seconds

Step-by-step explanation:

Hope this helps

Cube of a binomial (a - b) ​

Answers

Answer:

(a - b)³ = a³ - 3a²b  + 3ab² - b³

Step-by-step explanation:

Cube of a binomial (a - b) ​

(a - b)³ = a³ - 3a²b  + 3ab² - b³

Oliver expects that the number of visitors to a museum(y) is related to the daily rainfall in mm(x). He plots a scatter plot and determines the equation for the line of best fit: y=14.1x+62.0 What is the expected number of visitors when the daily rainfall is 20 mm? Give your answer to the nearest integer.

Answers

Answer:

344 visitors

Step-by-step explanation:

Given that the relationship between the number of visitors to a museum(y) and the daily rainfall in mm(x) is defined as

y=14.1x+62.0

when the daily rainfall is 20 mm, the number of visitors

y = 14.1(20) + 62

= 282 + 62

= 344

It means that the expected number of visitors is 344 persons (to the nearest integer).

the amusement park charges $20 to get in plus $1.50 per ride which linear equation represents this relationship y=1.5+20x,y=21.5x,y=1.5x+20,y=20x+1.5​

Answers

Step-by-step explanation:

1.50 per ride tones X number of rides plus a 20 entrance fee

y= 1.5x + 20

What’s 20, 48, and 8 as a decimal?? (I’ll give you brainlest because I’m awesome!)

Answers

Answer:

20: 0.2

48: 0.48

8: 0.667

I hope that answers your question and it's right!! :)

Answer:

0.2, .48, 8.0

Step-by-step explanation:

Which equation is a related fact to 60 ÷ 10 = ∎? A) ∎ = 10 × 60 B) ∎ × 10 = 60 C) 10 = ∎ × 60 Please help me.

Answers

Answer:

Hey! here is the answer!

Step-by-step explanation:

C! 10 = ∎ × 60

i know this becuase i did the equation in reverse, then used my calculator to make sure all the numbers added up.

Answer: B)

Step-by-step explanation:

First we need to find the value of the black sqaure. The value of the black square is 6 because 60 / 10 = 6. A) cannot be the answer because 6 does not equal 60. C) cannot be the answer because 10 does not equal 360. The only answer can be B) because 6 x 10 does equal 60.

answer choices:
A(0 , 4)
B(-5 , -10)
C(-4 , -12)
D(12 , 0)

Answers

Answer:

C your welcome, hope you pass

help me.....

given condition A+B+C=180/2

prove that:
(sin2A+sin2B+sin2C)/(sin2A+sin2B-sin2C)=cotAcotB​

Answers

Answer:

The answer is in Picture.

Step-by-step explanation:

Hope it is helpful....

Answer:

hope it's helps you have a great day keep smiling be happy stay safe

Determine the dimensions of a rectangle whose area is 54 units2 and whose side lenghs are (x + 1) and (x – 2).
Answer-:
6 and 9

8 and 7

8 and -7

3 and 18

Answers

the answer is 8 and -7!!!!!!! it’s the 3rd option.

anyonee?
pleaseee help!!!!​

Answers

Step-by-step explanation:

Given

sin³ø cos ø + cos³ø sinø

= sin ø cos ø ( sin²ø + cos²ø)

= sinø cosø * 1

= sinø cosø

Hope it will help :)

Can you please help me

Answers

the slope is 1/2 cuz its rise over run

15. Considera um losango em que uma diagonal tem 8cm e cuja área é 12cm^2. Qual é o comprimento do lado do losango, arredondado às décimas? Nota: Indica apenas o valor numérico usando algarismos. (Não escrevas unidades de medida na resposta.)

Answers

Answer:

4,3cm

Step-by-step explanation:

Passo 1

Um losango tem 2 diagonais, cujos comprimentos não são iguais

Temos que encontrar o comprimento da segunda diagonal

A fórmula é dada como:

Área de um losango = 1/2 (d1 × d2)

Área do losango = 12 cm²

d1 = Comprimento da primeira diagonal = 8cm

d2 = Comprimento da segunda diagonal = x

12 = 1/2 (8 × x)

12 = 1/2 (8x)

12 = 4x

x = 12/4

x = 3cm

O comprimento da segunda diagonal = 3 cm

Passo 2

A fórmula do comprimento da lateral de um losango é dada como:

s = √d1² + d2² / 2

d1 = 8cm

d2 = 3 cm

s = √8² + 3² / 2

s = √64 + 9/2

s = √73 / 2

s = 8,5440037453 / 2

s = 4,2720018727 cm

Aproximadamente = 4,3 cm

Roberto is dividing his baseball cards equally between himself, his brother, and his 3 friends. Roberto was left with 9 cards. How many cards did Roberto give away? Write and solve an equation to solve the problem.


PLZZZ HELP MEE ILL GIVE BRAINLIEST AND 50 POINTS!!!

Answers

Answer:

The answer would be 45.

Step-by-step explanation:

5*9=45

Answer:

45

Step-by-step explanation:

First we count how many people he split it between which is 5 and we have to remember the key word here is equal so if he was left with 9 then everybody else did as well. so we multiply 5 times 9 which is 45

Inscribed angles
Please help!!!!!!!! With explanation!!!!!

Answers

Answer:

a = 72° b = 88°

Step-by-step explanation:

We know in the cyclic quadrilateral opposite angles are supplementary so

a + 108° = 180° { being opposite angles of cyclic quadrilateral }

a = 180° - 108°

a = 72°

b + 92° = 180° { being opposite angles of cyclic quadrilateral }

b = 180° - 92°

b = 88°

Divide.
(8x^3+ 31x^2+ 6x +40) + (2x+8)

Answers

Answer:

divide them by what?

or fivide it with eachother?

0.3 x 103
0 3 x 1025
Write the following as an ordinary number. [
(1 Point
3x10​

Answers

0.3 x 103 = 30.9
0.3 x 1025 = 307.5

3 x 10^5 = 300,000

Barred owls often lay two eggs, and each resulting chick has an equal probability of being male or female. What is the probability that both chicks are male, given that at least one of them is male?

Answers

0.25 or 25%. Basically, we know that it’s 50% to get a male chick then another 50%, so the end result is 0.5 * 0.5 or 0.25.

all of the benches in the park are red or blue

Answers

Answer:

There's a 50% probability of all of them being red or blue

Step-by-step explanation:

More information needed

Answer:

Are you asking a question?

Step-by-step explanation:

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