the mean of 30 numbers is 150.it was detected on rechecking that one value of 165 was wrongly copied as 135.find the correct mean​

Answers

Answer 1

Answer:

151

Step-by-step explanation:

m=150cm

n=30

new mean =(m*n+165-135)/n

=(150*30+165-135)/30

=(4500+30)/30

=4530/30

=453/3

=151

therefore

correct mean =151

Hope this helps :D


Related Questions

Which equation represents the graphed function?
10,3)
(32)
2
5
-3 -2 -1
1
3
4 5
-2
DR
Or
A
y = -3x + 3
B
y=-{x+3
С
y = 3x -
D
y = 3x - 3

Answers

Answer:

the equation is y=-1/3x+3

Ryan also earns money by selling colored watch bands with the watches he sells. The linear expression 100x – 50 models Ryan's additional income. What is the expression that models the new average profit, including the bands? Note: To obtain the new average profit expression, add the linear expression to the original rational expression. Write the new profit expression as one fraction.

Answers

Answer:

Average (additional) income = 100 - 50/x

Step-by-step explanation:

Ryan's additional income = 100x - 50 , where x = quantity of colored watch bands

Ryan's additional average income = Income / Quantity of watches sold

(100x - 50) / x

= 100 - 50/x

Find (x^3+7x^2-16x-112) divide (x+4) by using synthetic division.

Answers

Answer:

x^2+3x-28

Step-by-step explanation:

Answer:

The answer is x^2  3x 28

Step-by-step explanation:

Translate into an equation: "The difference of half a number and 7 is the same as the sum of the number and 13"

Answers

Answer:

n2 - 7 = n + 13

How do you graph 16x-4y=2?

Answers

Make it into slope intercept form
16x = 4y + 2
4y = 16x - 2
Divide by 4
Y = 4x -1/2
Since the equation is linear, find 3 points and plot them
(0, -1/2), (1, 3.5), (-1, -4.5)
And lastly, draw a line through them

Answer:

I like your cut g

Step-by-step explanation:

Y greater than or less than 1/4 X + 2

Answers

Answer:

y[tex]\geq[/tex]1/4x+2

Step-by-step explanation:

Which expression is not equivalent to -3x + 24? Select all that apply.

A. -3(x - 8)
B. -(3x + 24)
C. 3/2(-2x + 16)
D. -1/3( 9x + 8)
E. 6(-1/2x - 4)
F. 8(-3/8x + 3)

Answers

Answer:

B, D, and E

Step-by-step explanation:

You'll have to distribute each and put them into a full equation again.

A. -3x + 24

B. -3x - 24

C. -3x + 24

D. -3x - 8/3

E. -3x - 24

F. -3x + 24

I bolded the ones that did not equal -3x + 24

so your answer is B, D, and E

What is mZG?
Enter your answer in the box.

FGH
(x-5)°
(3x+24)°
x°​

Answers

Answer:

The angle for G is 121°.

Step-by-step explanation:

Given that total angles in a triangle is 180° so in order to find the angle of G, first, you hav eto find the value of x :

x + (x - 5) + (3x + 25) = 180°

5x + 20° = 180°

5x = 160°

x = 32°

Next, you have to find the angle of G :

G = 3x + 25

G = 3(32) + 25

G = 96° + 25°

G = 121°

The ratio of 8 less than a number to 28 more than that number is 2 to 5. What is the number?
a. 32
b. 30
c. 28
d. 15

Answers

Answer:

let the number be x

then

(x-8): (x+28) = 2:5

on solving

5x-40= 2x+56

3x = 96

x = 32

Step-by-step explanation:

The answer is 32... A

HURRY PLEASE!!

How would you graph this on a slope?


Answers

Answer:

If you wanted to you could go to desmos it helps you graph

Step-by-step explanation:

What is the domain of the square root function graphed below?
x=-1 x>/=-1

Answers

Answer:

im guessing -1

Step-by-step explain

well it would be greater than -1x-1

transversals angles​

Answers

3 or in this case the answer is C

the answer of your question is angle 3

3 values greater than |-3.5|

Answers

Answer:

6.5

Step-by-step explanation:

3.5 + 3

Answer:

6.5

Step-by-step explanation:

I-3.5I = 3.5

3.5 + 3 = 6.5

Check Work:

6.5 - 3.5 = 3

or

I-3 - 3.5I = I-6.5I = 6.5

Number the answer like, in the blank type in the answer. Pls help ignore my answers unless correct
1. ____
2____
3______

Answers

Answer:

1.  32  2. You got that one correct 3.  1  5/34

Step-by-step explanation:

1. 24 / 3/4

3/4 = .75

24/ .75 = 32

3. Turn into improper fraction

13/4 / 17/6

= 1  5/34

Hope this helps dude

Need help ASAP!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

5/6 + 1/8 + 3/4 = 1 17/24

Option A is the correct answer

Equation of the Line
Lesson
I
After going through this lesson, you are expected to find the equation of a
line given (a) two points, (b) the slope and a point and (c) the slope and its
intercepts
From the given linear equation, we can determine 2 points that will satis-
fy the equation. Also we can determine the slope and the y- intercept so as the
x and y intercepts.
Example: Given - 2x + y = 6
Find: a. two points that will satisfy the equation
(b) slope and y-intercept
(c) x and y intercept
Solution:
(a) -2x + y = 6
If x = -1
If y = 2
-21-1) + y = 6
- 2x + 2 = 6
2 + y = 6- y = 4
-2x = 4-x= -2
The point is (-1,4)
The point is (-2, 2)
(b) Change the equation to slope intercept form : y = 2x + 6
Therefore the slope m = 2 and the y-intercept b = 6
(c) Find the and y intercept of -2x + y = 6
Let x = 0, -2(0) + y = 6; y = 6. the intercept is (0,6)
Let y = 0, -2x + 0 = 6; -2x = 6, X = -3, the y intercept is (-3,0)
Learning Task 1 : From the given equation of the line a) find two points that will
satisfy the equation, b) the slope and the y intercepts and c) the x and y-
intercepts.
2.
3y - X9
1. 3x + 2y = 5​

Answers

9514 1404 393

Answer:

  a) (0, 5/2), (5/3, 0)

  b) m = -3/2; b = 5/2

  c) (5/3, 0), (0, 5/2)

Step-by-step explanation:

Given:

  3x +2y = 5

Find:

  a) two points that satisfy the equation

  b) slope and y-intercept

  c) x-intercept

Solution:

Since the intercepts are points on the line, finding them satisfies all parts of the question except finding the slope.

a) Let x=0. Then we can find y from ...

  3·0 +2y = 5

  y = 5/2

One point is (0, 5/2).

Let y=0. Then we can find x from ...

  3x +2·0 = 5

  x = 5/3

Another point is (5/3, 0).

Two points on the line are (0, 5/2) and (5/3, 0).

__

b) The slope can be found using the slope formula on the two points we found.

  m = (y2 -y1)/(x2 -x1)

  m = (0 -5/2)/(5/3 -0) = -(5/2)/(5/3) = -3/2

The slope is -3/2. The y-intercept is 5/2.

__

c) The x- and y-intercepts are (5/3, 0) and (0, 5/2), respectively.

URGENTTTTTTTTTTTTTTT ASAP MARKING BRAINLIEST

Answers

Answer:

I would say B only IV because all of the others are assuming and there's no way to prove true or not.

Step-by-step explanation:

What is the slope of the line between (-3, 6) and (11,-5)?

Answers

Answer:

m=-11/14

Step-by-step explanation:

The surface area of a sphere is 196 π . Its radius is

Answers

Answer:

The radius of the sphere is 7 units

Step-by-step explanation:

Surface Area

Given a sphere of a radius (r), the surface area is given by the formula:

[tex]\displaystyle A=4\pi r^2[/tex]

If the surface area is given, we can solve for r:

[tex]\displaystyle r=\sqrt{\frac{A }{4\pi }}[/tex]

The surface area of a sphere is given A=196π.

Calculating the radius:

[tex]\displaystyle r=\sqrt{\frac{196\pi}{4\pi }}[/tex]

[tex]\displaystyle r=\sqrt{49}[/tex]

r = 7 units

The radius of the sphere is 7 units

A Sweater That normally costs $25.00 is on sale for 10 percent Off.
What will the Discount be?
what will the cost of the Sweater be?
Can Someone Please PLEASE help me??

Answers

Answer:

15.00

Step-by-step explanati

the discount is 15% because you need to subtract it

Jana has a sandbox that is 4 1/2 feet long, 5 feet wide, and 1/2 foot deep. How many cubic feet of sand does she need to fill the sandbox completely.

Answers

Answer:

She needs to fill [tex]11\frac{1}{4}[/tex] ft³ in order to fill the sandbox completely.

Step-by-step explanation:

length = [tex]l[/tex]= [tex]4\frac{1}{2}=\frac{9}{2}=4.5[/tex]  feet

width = [tex]w=[/tex] 5 feet

depth = [tex]h=\frac{1}{2}=0.5[/tex] feet

Sandbox is just like a rectangular prism. In order to fill the sandbox completely, we need to determine the volume.

Thus, the formula to find the volume of a rectangular prism can be computed using the formula

[tex]V\:=\:l\:\times \:w\:\times \:h[/tex]

[tex]V=4\frac{1}{2}\times 5\times \frac{1}{2}[/tex]

    [tex]=\frac{9}{2}\times \:\:5\times \:\frac{1}{2}[/tex]

     [tex]=\frac{45}{2\times \:2}[/tex]

     [tex]=11\frac{1}{4}[/tex] ft³

Thus, she needs to fill [tex]11\frac{1}{4}[/tex] ft³ in order to fill the sandbox completely.

WHICH OF THE FOLLOWING IS THE SLOPE?

Answers

i think it’s answer d

Sarah and Henry share some sweets in the ratio 5:6 .
Sarah eats 16 of her sweets and the ratio of sweets left becomes 1:2 .
How many sweets did Henry have?

Answers

5/6 = 16/X — cross multiple
5X = 96

X = 96/5
X = 19.4

19.4 x 2 = 38.4
Round up = 39 pieces of Candy

If and θ is in quadrant IV, and .

Answers

Answer:

No hablo espanol

Step-by-step explanation:

Seriously what are you saying XD

Use the Distributive Property and mental math to find the product.

9×76 =

Answers

Answer:

684

Step-by-step explanation:

Trust

Enter the equation of the line in slope-intercept form.

The line parallel to y =
7
4
x + 4 that passes through (−8, 0).

The equation of the line that passes through (−8, 0) is y = .

Answers

Answer:

y = 7/4x + 14

Step-by-step explanation:

0 = 7/4(-8) + b

0 = -14 + b

14 = b

y = 7/4x + 14

help me please I have no idea what the answer is​

Answers

Answer:

-21/10

Step-by-step explanation:

-2/5 - 4/5 = -6/5  <--

a common denominator

Then...

-6/5 -9/10 = -21/10

There is not a common denominator so you have to multiply 2 to the -6/5 to make it -12/10

The answer can be left as an improper fraction which is -21/10

or a mixed number -2 1/10 th

On Monday, a local hamburger shop sold a combined total of 588 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Monday?

Answers

the answer would be 147.I hope this helps you

Step-by-step explanation:

4h=588

h=588÷4

50pts ANSWER ALL QUESTIONS

Answers

13.) -3/4

14.) takes a lot of work

15.)5

16.) corresponding

14.) d=24

15.)25x+5=26x

Answer:

13.) -3/4

14.) takes a lot of work

15.)5

16.) corresponding

14.) d=24

15.)25x+5=26xStep-by-step explanation:

You are treating yourself this week-end to an afternoon at a paintball park. For three hours Paintball Excursions charges $30 to rent equipment and $15 for each box of paintballs used. On the other side of town, at Paintball USA, they do not charge for rental of equipment but charge $25 for each box of paintballs. Their sessions also last three hours. Write and solve an equation to find the number of boxes of paintballs you would have to use for both parks to charge the same amount.

HELP WILL GIVE BRAINLIEST

Answers

30 + 15x = 25x
30=10x
x=3
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