eight values have a mean of 7. a ninth value is added. the new mean is 9. what is the new value

Answers

Answer 1

Answer:

25 because the 8 values must times with 7 and will get 56. when the ninth value added , let the ninth value as y , 56+y , the new mean is 9 . so it will be like this , 56+y over 9 times with 9


Related Questions

HURRY PLEASEEEEEE eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

rate: 24:2

unit rate: 12:1

Step-by-step explanation:

Given function:

24 inches in 2 feetto find the rate and unit rate

What is the rate?:

24 inches would be the first digit and 2 feet would be the second one..

the rate would be 24:2..

What is the unit rate?:

unit rates would be the lowest form which means that you have to find a equivalent factor to find the unit rate..

24*2=12, 2*2=1

this also means 12:1

Therefore, the rate of 24 inches and 2 feet is 24:2 and the unit rate would be 12:1.

A middle school is selling candy bars to raise money for new calculators. The graph shows the number of candy bars sold, x, and the amount of money collected, y.

Enter a value that completes the equation correctly.

Y=__x

Answers

Y=2.5x as each time it increases by 2.5
Y equals 2.5x because it increases 2.5

HELP DUE IN 15 MINS!

Reason 2:

-Division Property of Equality

-SAS Postulate

-AA Postulate

-Reflexive property of Congruence

-Given

-Vertical Angle Theorem

-SSS Postulate

-Prove

Answers

Answer:

Missing reasons:

1. Given (the ratios of corresponding sides)

2. Reflexive property of Congruence (same angle K)

3. SAS Postulate (two sides are similar and the included angle congruent)

is the slope (+) (-) (zero) or (unidentified)​

Answers

Answer:

zero is the answer brainliest plz

Step-by-step explanation:

Write two numbers that multiply to the value on top and add to the value on bottom.

Answers

Answer:

10 ,22

Step-by-step explanation:

i think so.................

Betty has 427 oranges and needs to pack them up equally in 23 boxes. How
many oranges go in each box and how much does she have left over

Answers

it's 18 with a remainder of 13. I attached a photo that shows the work of it

1 point
What is the center and radius of a circle with equation (x-4)2 + (y - 2)2 = 4

Answers

Step-by-step explanation:

Find the Center and Radius (x-4)^2+y^2=4

(

x

4

)

2

+

y

2

=

4

This is the form of a circle. Use this form to determine the center and radius of the circle.

(

x

h

)

2

+

(

y

k

)

2

=

r

2

Match the values in this circle to those of the standard form. The variable

r

represents the radius of the circle,

h

represents the x-offset from the origin, and

k

represents the y-offset from origin.

r

=

2

h

=

4

k

=

0

The center of the circle is found at

(

h

,

k

)

.

Center:

(

4

Three friends are going to split the cost of a birthday gift. The gift cost $25. How much will each person have to pay (round to the nearest cent – which means nearest hundredth)?

Answers

Each person will have to pay $8.33

Answer ASAP!!!!!!!!!!! 20 POINTS

Salvador places a circular canvas on his A-frame easel and carefully centers it . The top of the easel forms a 30° angle and mBC = 22° . what is mAB?

Answers

Answer:56

Step-by-step explanation:

The measure for m (AB) is 128 degree.

What is Arc?

An "arc" in mathematics is a straight line that connects two endpoints. An arc is typically one of a circle's parts. In essence, it is a portion of a circle's circumference.

A curve contains an arc. A circle is the most common example of an arc, yet it can also be a section of other curved shapes like an ellipse.

We have,

The top of the easel forms a 30° angle and m (BC) = 22°.

As per the question,

AD = ED  and m<O = 30

So, m <OAE = m <OEA

                    = 1/2 (180 - m<D)

                    = 75

and, m <BEC = 1/2 (m BC)

                      = 1/2(22)

                      = 11

Then, m<BEA = m <OEA - m <BEC

                       = 75 - 11 = 64

Also, m (AB) = 2 x 64 = 128

Learn more about Arc here:

https://brainly.com/question/18741430

#SPJ5

Can someone help !

Solve for x.

Answers

Answer:

3) x = -4

4) x = 9

Step-by-step explanation:

3) (x+15)+(x+16) = 23

2x+31 = 23

2x = -8

x = -4

4) (2x-12)+1 = (x-2)

2x-11 = x-2

x = 9

NEED HELP FAST PLEASE
Graph triangle DEF with vertices D(0,3),E(4,3),F(0,7)Rotate 180 degrees. Then translate using (x,y ) >(x-1,y-1)
FIND THE NEW PAIR OF COORDINATES!

Answers

Your new coordinates would be
D’(-1,-4) E’(-5,-4) F’(-1,-8)

plz help ...............................

Answers

Answer:

It is the right-angled triangle.

Step-by-step explanation:

According to the Pythagorean theorem, [tex]a^{2}+b^{2}=c^{2}[/tex], which c is the longest side of the triangle.

So, [tex]27^{2}+36^{2}=45^{2}[/tex] if the triangle is right angle.

[tex]LHS=27^{2} + 36^{2} = 2025[/tex]

[tex]RHS=45^{2}=[/tex][tex]RHS=45^{2} = 2025[/tex]

∵LHS=RHS

∴It is a right-angled triangle.

Answer:

The right angled triangle

The power, P (watts) , of a car engine is proportional to the square of its speed, s ( m / s ) . When s = 30 , P = 1260 . Work out the power when the speed is 25 m / s

Answers

Answer:

875 Watts

Step-by-step explanation:

Given that :

P α s²

P = ks²

Where k is the proportionality constant

When ; p = 1260 ; s = 30

1260 = k * 30²

1260 = 900k

k = 1260 / 900

k = 1.4

Value of p ; when s = 25

P = 1.4 * s²

P = 1.4 * 25²

P = 1.4 * 625

P = 875 watt

4х + 1= 3x + 2
does it have no solution one solution or infinitely many solutions

Answers

Step-by-step explanation:

4x-3x=2-1

×=1

that's fine

There’s only one solution

ANSWER QUICKLY FOR 15 POINTS!! :,)

Mrs. Gregory’s class is building a model of a farm. They will use a cylindrical oatmeal container to make a portion of the barn. The container is 8 inches tall and has a radius of 2.5 inches.

What is the total surface area of the oatmeal container to the nearest tenth of a square inch?
164.9 square inches
157.1 square inches
39.3 square inches
125.7 square inches

Answers

Answer:

125.7 square inches long

last week , tina worked 35 hours in 5 days she worked the same number of hours each day , How many hours did she work each day

Answers

175 I believe........................

What goes on the green box ?

Answers

Answer:

5^9 / 5^3 = 5^6

the answer is 6

Step-by-step explanation:

write the equation for this table​

Answers

Y= +9

0+9=9
2+9=11
4+9=13
6+9=15

WILL MARK BRAINLIEST IF GOTTEN RIGHTT

Answers

Answer:

The answer is C.

Step-by-step explanation:

If you look at the shapes one of them is smaller than the other but they are still the same shapes so I think it is C.

Evaluate the expression when g = 28 and h=6.
G-3h

Answers

Answer:

hi Ion know but can u help me on my question

Which expression represents: "the quotient of three times a number and 7?​

Answers

3n/7-2=4n-6

clear fraction .le, multiply by 7

3n-14= 28n -42

25n =28

n=28/25

n/7 =4/25

12/25-50/25= 112/25-150/25 = > 38=38.

The expression 3(r/t) "the quotient of three times a number, and 7 option (C) 3(r/t) is correct after applying the arithmetic operation.

What is an arithmetic operation?

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that is +, -, ×, and ÷.

It is given that:

The expression is:

The quotient of three times a number and 7

Let the two numbers be r and t:

On division:

= r/t

= 3(r/t)

Thus, the expression 3(r/t) "the quotient of three times a number, and 7 option (C) 3(r/t) is correct after applying the arithmetic operation.

The missing options are:

3 + rt

r/3t

3(r/t)

3 ÷ (r/t)

Learn more about the arithmetic operation here:

brainly.com/question/20595275

#SPJ2

On a coordinate plane, what is the distance between the point at (4, 7) and the point at
(-4, 7)?

Answers

Answer:

8

Step-by-step explanation:

Distance= √(-4-4)² + (7-7)²

= √(-8)² + (0)²

= √64

= 8

plz help me with this and plz show ur work!?! :)

Answers

Answer:

Total height lowered = 75m

No of times balloon lowered = 5

Height lowered in each lowering = Total height lowered / No of times balloon lowered

                                                      = 75 / 5

                                                     = 15 m

The number indicated that each time balloon is lowered by 15 m

(3 x 4) + (3 x 7)
Pls help need it know

Answers

the answer to the equation is 33

help i don't know what to do please help

Answers

Suki is correct because adrienne subtracted 6 instead of -6

Which system of linear equations has a solution of (2, 3)?

Answers

Answer:

i don't know

Step-by-step explanation:

1.) The graph of g(x) = ax? opens downward and is narrower than the graph of f(x) = x? Which of the following
could be the value of a?
a. 5
b. 0.5
C. -5
d. -0.5​

Answers

Answer:

C. -5

Step-by-step explanation:

for g(x) =ax and f(x) = x, both are linear function. There is nothing to be upward or downward and both are lines nothing to compare its narrowness.

If g(x) = ax² vs f(x) = x²

Then a = -5 is the answer (-: downward and 5: vertical stretch)

I really need help ASAP pls I think it’s c but I’m not sure

Answers

i think that the answer will be c

Answer:

C.

Step-by-step explanation:

Because angle TQR & angle TRU are complementary angles, meaning they add up to 90º.

So if TQR = 18, then:

(X- the measure of TRU)

X + 18 = 90

solve for x:

X + (18-18) = 90 - 18

X= 72

Hope this helps! Have a great day!

How many times larger is 6 × 1011 than 2 × 10-5?
A.
3 × 1016
B.
3 × 1055
C.
3 × 10-55
D.
3 × 10-16

Answers

Answer:

A. 3 x 1016

I hope its help for you


What is the simplified form of the expression 0.3 (4x - 4y)?

Answers

Answer:

1.2x-1.2y

Step-by-step explanation:

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