The mean of 3, a+2, 8, 12, 2a-1 and 6 is 7. Find the value of a. its urgent plsss​

Answers

Answer 1

Answer:

5.5

Step-by-step explanation:


Related Questions

You have 26 songs in your MP3 player. After you add some more, you have 39 songs. How many songs did you add?

A. -13
B. 13
C. 65
D. 23

Answers

Answer:

b

Step-by-step explanation:

39-26 = ?

39

-26

____

 13

you added 13 songs.

a researcher read a 12 page article in 30 mintues. on average, how much time did the researcher spend reading each page of the article? (1 minute = 60 seconds)

Answers

total minute(one year) = 15 X 365 no of pages read in one year = 12 x 200 = 1200

number of page read in one minute = no of pages read in one year/total minute(one year) = 2400/5475= .4383

ie 1 minute - .4383 page

ie 60 sec - .4383 page

time for 1 page 60/.4383 = 136.89

Part 2

Time needed to read a page 30 sec less

ie 136.89 -30 = 106.89.

so number of pages read in 1 sec = 1/106.89

number of pages read in 1 min = 1/106.89 * 60

number of pages read in a day = 1/106.89 * 60 * 20

number of pages read in a year = 1/106.89 * 60 * 20 * 365 = 4097.67 ( ie 1/106.89 * 7300)

number of books = number of pages read in a year/200 = 20.49

A candy bag contains 12
green candies and 1
blue candy. Preston will choose 2
candies from the bag without looking.

Which answer describes a possible event?

choosing 2
2
blue candies
choosing 2 blue candies

choosing 1
1
blue and 1
1
red candy
choosing 1 blue and 1 red candy

choosing 2
2
red candies
choosing 2 red candies

choosing 1
1
blue and 1
1
green candy

Answers

Answer:

choosing 1 blue and 1 green candy or choosing 2 green candies

WILL MARK BRAINLIEST
Hannah jumps rope 300 times. Sharon jumps rope 179 times. How many more times does Hannah jump rope than Sharon? Click on the numbers to enter the answers in the boxes​

Answers

Answer:

121

Step-by-step explanation:

300

-179

-------

121

10 1/8 +2 1/4
Show work please
and no links

Answers

Step-by-step explanation:

Please refer to the attachment

ANSWER ASAP PLZ
Which statement is true based on the diagram?
O PQR - STR
O RST ~ RQP
O QR corresponds to TR.
O PR corresponds to RS.

Answers

Answer: B

O RST ~ RQP

Step-by-step explanation:

The statement that is true based on the diagram is: "QR corresponds to TR."

Based on the given information, we have the following:

1. PQ = 8 cm

2. QR = 12 cm

3. RT = 18 cm

4. ST = x cm (length not specified)

Now, let's analyze the statements:

1. [tex]\( \triangle PQR \sim \triangle STR\)[/tex] - This statement is not necessarily true because we don't have enough information to determine if the two triangles are similar.

2. [tex]\( \triangle RST \sim \triangle RQP\)[/tex] - This statement is not necessarily true because we don't have enough information to determine if the two triangles are similar.

3. QR corresponds to TR - This statement is true based on the fact that QR and TR are corresponding sides of the triangles [tex]\(\triangle PQR\)[/tex] and [tex]\(\triangle STR\)[/tex] that are intersected by transversal QRST.

4. PR corresponds to RS - This statement is not necessarily true because we don't have enough information to determine if PR and RS are corresponding sides of the triangles [tex]\(\triangle PQR\)[/tex] and [tex]\(\triangle STR\)[/tex].

So, the correct answer is: QR corresponds to TR.

To know more about diagram, refer here:

https://brainly.com/question/29251917

#SPJ6

Does anyone know????????

Answers

Answer:

1) -3/2

Step-by-step explanation:

The common ratio is the amount you multiply by to get to the next number in the sequence. To calculate this you will need to divide the term by its preceding term.

For example (3/4) / (-1/2)

When dividing by fractions you should apply KCF (Keep Change Flip), so you will end up with (3/4) x (-2/1) = -3/2

Check this by doing the next term (-9/8) / (3/4)

When dividing by fractions you should apply KCF (Keep Change Flip), so you will end up with (-9/8) x (4/3) = -3/2

The millers are going to put a pool in their backyard this summer. The pool will have a depth of 5 feet, and the dimensions shown in the picture. What will be the total volume of water needed to fill the pool?

Answers

Answer:

D : 510 units

Step-by-step explanation:

NOTE:

Something to consider when solving problems like this is to break the large shape down into smaller, more managable shapes. So for this problem, you can break down this irregular shape into two rectangles. This will make solving problems similar to this easier in the future :)

WORK:

I broke down this shape into two rectangles with the following dimensions:

- 12 meters by 5 meters

- 3 meters by 14 meters

You also know that the depth has to be 5 feet (the problem itself did not account for differences in feet and meters, as when I converted the 5 feet to meters and solved that way, none of the answers were correct)

Using this information, you can now solve for the volume of each of the rectangles

12*5*5 = 300 units

3*14*5 = 210 units

Then, you simply add the two volumes together to find the total volume needed to fill the pool which equals

510 units

SOLVE FOR X!!
(will mark brainliest)

Answers

Answer:

19

Step-by-step explanation:

Since it is a 90° angle we can say that 3x-15+2x+10 = 90.

3x-15+2x+10 = 90

5x-5=90

5x=95

x=19

By solving this we find that x is equal to 19.

Answer:

19

Step-by-step explanation:

3*19 = 57

57 - 15 = 42

2*19 = 38

38 + 10 = 48

48 + 42 = 90

(As this is a 90 degree angle)

The ratio of the interior angles of a triangle is 2 : 3 : 4. What are the angle measures? Write the angle measures from least to greatest.

Answers

9514 1404 393

Answer:

  40°, 60°, 80°

Step-by-step explanation:

The total of ratio units is 2+3+4 = 9.

The total of angles in a triangle is 180°, so each ratio unit stands for 180°/9 = 20°.

The angle measures are ...

  20° × 2 = 40°

  20° × 3 = 60°

  20° × 4 = 80°

Is this a complementary, supplementary, vertical, or adjacent

ill give brainly​

Answers

Answer:

its complemtary

Step-by-step explanation:

check this photo


How many angles do 5 triangles and 3 rectangles have?
(1) 7
(2) 17
(3)
18
(4) 27

Answers

Answer:

27

Explanation:

5 * 3 = 15 (5 triangles with 3 angles each)

3 * 4 = 12 (3 rectangles with 4 angles each)

15 + 12 = 27

Answer:

the answer is 27 because a triangle has 3 sides so multiply 3 tomes 5 because of how many triandles and then the same with the rectangle that has 4 sides then multiply by 3 because of the number of triangles you have

Mariel says that a jewelry box that is 3 inches high, 4 1/2 inches wide, and 5 inches long has a volume of 67 1/2 inches. Katie says that answer is not quite correct. What is the error in Mariel's answer?

Answers

Answer: inside width, length and heights may be smaller

Step-by-step explanation. Walls of box have certain thickness, assume 0.1 inches. Then inner measures would be 2.8 in, 4.3 in and 4.8 in. You need to reduce thickness of wall from both sides.

help me please anyone here? will mark brainliest of correct but report if nonsense​

Answers

Step-by-step explanation:

1/(1 - p + p²) - 1/(1 + p + p²) - 2p/(1 - p² + p⁴) =

[ (1 + p + p²)-(1 - p + p²)/(1 - p + p²)(1 + p + p²) ] - 2p/(1 - p² + p⁴) =

2p/(1 + p + p² - p - p² - p³ + p² + p³ + p⁴) - 2p/(1 - p² + p⁴) =

2p/(1 + p² + p⁴) - 2p/(1 - p² + p⁴) =

[ 2p(1 - p² + p⁴) - 2p( 1 + p² + p⁴) ]/(1 + p² + p⁴)(1 - p² + p⁴) =

(2p - 2p³ + 2p⁵ - 2p - 2p³- 2p⁵) / (1 - p² + p⁴ + p² - p⁴ + p⁶ + p⁴ - p⁶ + p⁸) =

-4p³ / (1 + p⁴ + p⁸)

sin430° x sin490° x sin530° = 1/8​

Answers

Answer: 1/8

Step-by-step explanation:

https://math.stackexchange.com/a/1788346


The average number of televisions per family is numbered in the tens.
A. True
B. False

Answers

Answer:

False!

~The Average number of TVs in a house is 2 - 3

Hope this helps!

Answer:

False.

The average number of televisions per family would have to be more than ten for it to be true, and I find this very hard to believe.

Hope I helped!

A movie theater sells popcorn in bags of different sizes. The table shows the volume of popcorn and the price of the bag

complete one column of the table with prices where popcorn is priced..... and to be continue ​

Answers

Answer:

The price for a 60-ounce bag of popcorn would be $16

Step-by-step explanation:

Answer:

The price for a 60-ounce bag of popcorn would be $16

Step-by-step explanation:

Function Modeling

The behavior of some parameters that depend on a set of variables can be modeled in several ways, like linear, quadratic, exponential, logarithmic, among many others.

The selection of the model is often a complex decision that involves statistics and data analysis.

The question provides us with four points where the volume of popcorn bags and the price in dollars. The easiest function that can be used is the line.

The equation of a line of the volume V and the price p can be found with the expression

We'll use the first two values (6,10) (8,20)

Simplifying and rearranging, we get the model

To test the accuracy of the model, we compute the values of p for V=35 and for V=48

Since the computed values are equal to those of the table, the model is accurate. We can now predict the price for V=60

The price for a 60-ounce bag of popcorn would be $16

Which function describes the graph below?
X

Answers

La respuesta no está allí a si que cuando puedas no las mandas si!

Classify the solid figure.
O A. rectangular prism
O B. rectangular pyramid
O C. cylinder
O D. quadrilateral
HELP MEEE

Answers

That looks like a rectangular prism
It’s A.
..................

Choose all that apply!! i’ll give a brainly!!

Answers

Step-by-step explanation:

The answer is A

PLEASE FOLLOW ME

I WILL MARK BRAINLIEST PLEASE ANSWER ( NO LINKS I WILL REPORT YOU IF YOU GIVE ME A LINK)

Answers

Answer: B

Step-by-step explanation:


How many even numbers less than 1000 can be formed from the given
digits 0,2,3,5 if repetition is not allowed.
(a) 16
(b) 24
(c) 6
(d) none of these

Answers

Answer:

non of them it should be 32 iʻm pretty sure

Step-by-step explanation:

Help needed ASAP!! I will give brainliest! (You don’t need to plot the graph)

Answers

Answer:

first one y: -3, 0, 3, 6, 12

second one y:5, 2, 0, 2, 5

Step-by-step explanation:

for the first one the equation is y=3x

so when it goes as x:-1, 0, 1, 2, 4

so you should multiply each number by 3 as the equation does

(just replace each number by x in the equation)

so y: -3, 0, 3, 6, 12

next one: equation is y=[tex]x^{2}[/tex]+1

so do the same as up there: replace x with every number

x:-2, -1, 0, 1, 2

so y will be

y:5, 2, 0, 2, 5

Mr. Johnson sold a new tv that was $450. If he earns 7% commission, how much money will he make in commission?

Answers

Answer:

$31.50

Step-by-step explanation:

1. What is the value of x?
40
х
9

A.41
B.26
C.17
D.39

Answers

Answer:

B

Step-by-step explanation:

Find the surface area of this cube Be sure to include the correct unit in your answer
i dont really understand this pls help me ill give you brainly and 5 stars and a heart

Answers

Answer:

Which cube?

Step-by-step explanation:

................

If you roll a 6-sided die 54 times, what is the best prediction possible for the number of times you will roll a one?

Answers

Answer:

50% of the time (27 times) you will get an even number

Step-by-step explanation:

sorry if it wrong

The system shown is
O
inconsistent

equivalent
consistent

Answers

Answer:

This is pogers

Step-by-step explanation:

What is ur minecraft usernaem

Answer:

consistent  

A consistent and independent solution to a system of linear equations is one point

A consistent and dependent solution to a system of linear equations is where they are the same line ( they could also be called equivalent)

An inconsistent solution is where there is no solution, the lines do not cross

Since the lines cross at exactly one point, this is a consistent and dependent solution

The solution is at x = 3  ( 3 units to the right of the origin)

and y = 2 ( 2 units up from the origin)

Step-by-step explanation:

Amelia earned $100 on a $1000 investment with a bank for a 3-year term. what rate did the bank offer her?

Answers

Answer:

3.33%

Step-by-step explanation:

Rate = 100xSI / PxT

P = 1000

SI = 100

T = 3

Rate = 100 x 100 / 1000 x 3 = 3.33%

Write 40673 to the nearest thousand.​

Answers

Answer:

50000

Step-by-step explanation:

Answer:

41000

thank me later have a great day

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