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kati45 [8]
3 years ago
8

The average of 8,6,9,12 and 4x is x. What is the value of x

Mathematics
2 answers:
7nadin3 [17]3 years ago
6 0

Answer:

35

Step-by-step explanation:

The average of 8,6,9,12 and 4x is x

To get average add all the numbers given in data set and divide by 5 because we have 5 numbers in data set

Average =\frac{8+6+9+12+4x}{5}

Given that average is x. So we replace x for average

x=\frac{8+6+9+12+4x}{5}

Multiply both sides by 5

5x= 8+6+9+12+4x

Subtract 4x from both sides

x= 8+6+9+12

x=35

So the value of x is 35

Juliette [100K]3 years ago
3 0
8 + 6 + 9 + 12 + 4x / 5  =  x                      Original Problem.
25 + 4x / 5 = x                                         Addition.
25 + 4x = 5x                                            Multiply each side by 5.
25 = x                                                      Subtract 4x from each side.
x = 25                                                      Switch equation around.

Answer: x = 25
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1. Evaluate:<br> 4(5) +3(7-2)<br> a. 25<br> C. 18<br> d. 40<br> e. -40
Brrunno [24]

Answer:

35

Step-by-step explanation:

Simplify the following:

4×5 + 3 (7 - 2)

7 - 2 = 5:

4×5 + 3×5

4×5 = 20:

20 + 3×5

3×5 = 15:

20 + 15

| 2 | 0

+ | 1 | 5

| 3 | 5:

Answer: 35

6 0
3 years ago
Geometry math question no Guessing
bearhunter [10]
We can first look into the properties of parallelogram,you can also take reference from the figure above:

-Opposite sides are parallel and are congruent.
-Opposite angles are congruent.
-The diagonals bisect each other.

We can then look into the answer:

A.Opposite angles are congurent.
-This is an correct statement.

B.Diagonals are congruent.
-This is incorrect,although they bisect each other,they do not have the same length.

C.The diagonals are peroendicular to each other.
-This is incorrect as well,not every parallelogram has the angle of 90° in the place where the diagonals bisect each others.

D.The area is equal to the product of two adjacent side-this is not true,to find the area,it have to be base×height.

Therefore the answer is A.

Hope it helps!

7 0
4 years ago
A linear function has a slope of 4 and a y-intercept of (0,-8). What is the x-intercept of the line?
miss Akunina [59]

Answer:

The answer to your question is 2 or (2, 0)

Step-by-step explanation:

Data

slope = m = 4

y-intercept = -8

Process

1.- Write the equation of the line in the slope y-intercept

                    y = mx + b

In this equation:

m = slope

b = y-intercept

-Substitution

                   y = 4x - 8

2.- To find the x-intercept, consider that y = 0 and solve for x.

                   0 = 4x - 8

                   4x = 8

                     x = 8/4

                    x = 2    or (2, 0)

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4 years ago
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50 degrees I’m guessing is the answer
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3 years ago
What are the rectangular coordinates of the polar coordinates <img src="https://tex.z-dn.net/?f=%282%5Csqrt%7B2%7D%20%2C-%5Cfrac
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