Find the weighted average of the points in the line

Find The Weighted Average Of The Points In The Line

Answers

Answer 1

The weighted average of the points in the line is 7.5

How to find the weighted average of the points in the line?

The points are given as

3 and 12

The weighted average of the points in the line is calculated as

Weighted average = Sum/Count

So, we have:

Weighted average = (3 + 12)/2

Evaluate

Weighted average = 7.5

Hence, the weighted average of the points in the line is 7.5

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Related Questions

What is the value of this expression?

40÷[24−4×(2+3)]

Answers

Answer:

10

Step-by-step explanation:

hope it helps

Answer:

10

Step-by-step explanation:

ya its right

Suppose 115.2 million households have at least one TV; if 82% have basic cable TV, how many households have basic
cable TV?

Answers

If 115.2 million million households have at least one TV and  82% have basic cable TV, then the number of households have basic cable TV is

94464000.

Given,

The total number of household have at least one TV = 115.2 millions

The percentage of household have basic cable TV = 82%

Then, the number of household have basic cable TV

=115200000×[tex]\frac{82}{100}[/tex]

=94464000

Hence, if 115.2 million million households have at least one TV and  82% have basic cable TV, then the number of households have basic cable TV is 94464000.

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A student was asked to evaluate an expression the students work is shown describe any errors and find the correct value of the expression explain your reasoning

Answers

30 is the correct value of the expression in linear equation .

What in mathematics is a linear equation?

There are only one or two variables in a linear equation. No variable can be multiplied by a number larger than one or used as the denominator of a fraction in a linear equation. All of the points fall on the same line when you identify the values that together make a linear equation true and plot those values on a coordinate grid.

The error starts from here- 36-10 + 4

If we are doing addition or subtraction start from left

=36−10+4

=26+4

= 30

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Tanya is 28 years older than Marcus. In 6 years, Tanya will be three times as old as Marcus. How old is Tanya now?

Answers

Answer: 36 years old

Step-by-step explanation:

T=Tanya. M=Marcus

T=M+28

T+6=3(M+6)

T+6-6=3(M+6)-6

T=3(M+6)-6

M+28=3(M+6)-6

M+34=3M+18

34=2M+18

2M=16

M=8

T=M+28

T=8+28

T=36 years old

The current age of Tanya is equivalent to 45 years old.

What is a mathematical function, equation and expression?            function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.

Given is that Tanya is 28 years older than Marcus. In 6 years, Tanya will be three times as old as Marcus

Assume the initial age of Tanya is {x} years and that of Marcus is {y} years old. So, we can write -

x = y + 28         ....... Eq[1]

x + 6 = 3y         ........ Eq[2]

Using Eq[1] in Eq[2], we get -

y + 28 + 6 = 3y

y + 34 = 3y

2y = 34

y = 17

Than, we can write [x] as -

x = 17 + 28

x = 45

Therefore, the current age of Tanya is equivalent to 45 years old.

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Find the measures of two complementary angles if the measure of the larger angle is 2 less than 3 times the measure of the smaller angle. The measure of the smaller angle is
°,
and the measure of the larger angle is
°

Answers

The measure of the smaller angle is 23⁰ and the measure of the larger angle is 67⁰.

What are complementary angles?

When the sum of two angles is equal to 90 degrees, they are called complementary angles.

So we can say that two angles are complementary if they sum up to 90 degrees.

From the given statement;

let the larger angle = ylet the smaller angle = x

y = 3x - 2  -------(1)

y + x = 90  --------(2) (since they are complementary)

substitute for y in equation (2)

3x - 2 + x = 90

4x = 92

x = 92/4

x = 23 ⁰

y = 3(23) - 2

y = 67⁰

Thus, the measure of the smaller angle is 23⁰ and the measure of the larger angle is 67⁰.

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Vijay's family is leaving for galactic gardens resort once his parents get home from work on friday. their house is 544 miles from the resort. they plan to stop and spend the night at a hotel after 3 hours of driving, then complete the rest of the trip on the second day. if their average speed is 64 miles per hour, how long will they drive on the second day?

Answers

The next day they will drive for about 5.5 hours

In given question, Vijay's house is 544 miles from the resort.

after 3 hours of driving, they stop and spend the night at a hotel and  then complete the rest of the trip on the second day.

Let in 3 hours of driving, they completed the 'x' miles of distance from their home.

So, they complete the rest of the trip of 544 - x miles on the second day.

Let t be the time in hours they drive on the second day.

Their average speed is 64 miles per hour.

⇒ 64 = [x + (544 - x) ] / [3 + t]

⇒ 64 = 544 / 3 + t

⇒ 64(3 + t) = 544

⇒ 192 + 64t = 544

⇒ 64t = 352

⇒ t = 5.5 hours

Therefore, The next day they will drive for about 5.5 hours

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Which inequality is equivalent to -10 (x - 1) <13?

Answers

The inequality that is equivalent to the given inequality is -10x + 10 < 13  

From the question, we are to determine the inequality that is equivalent to the given inequality

The given inequality is -10(x - 1) < 13

To determine the inequality that is equivalent to this inequality, we will solve the given inequality

Solving the inequality

-10(x - 1) < 13

Apply the distributive property

-10x + 10 < 13

Subtract 10 from both sides of the inequality

-10x + 10 - 10 < 13 - 10

-10x < 3

Divide both sides by -10 and reverse the sign

x > -3/10

From the steps of solving the inequality, the inequality that is equivalent to the given inequality is -10x + 10 < 13  

Hence, the inequality that is equivalent to the given inequality is -10x + 10 < 13  

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Answer:

C. -10x + 10 < 13

Which sum or difference is modeled by the algebra tiles

Answers

Answer:

The answer is C

Step-by-step explanation:

First there are 2x first then there are other x's then two 1 equals 2

if 1/3 of a gallon of paint covers 1/8 of a wall, how much paint is needed to cover the entire wall?

Answers

Answer:

8/3 or 2 2/3 gallons

Step-by-step explanation:

1/3 of gallon covers 1/8 of a wall, therefore, the amount of pain is needed to cover the entire wall is 1/3 x 8 = 8/3 or 2 2/3 gallons

which expression can be used to calculate the rate per minute at which the air freshener dispenses sprays? fraction 30 over 6

Answers

Expression of the rate per minute at which air freshener dispenses sprays is equal to fraction 4 over 30.

As given,

The graph represents

x-axis: Time in minutes

y-axis: Number of sprays

Ordered pairs ( 30,4) ,(60, 8) ,( 90,12), and ( 120, 16)

Consider any two points ( 90,12) ,(120 , 16)

Expression of the rate per minute=( y₂ -y₁)/(x₂ -x₁)

                                                     =( 16 - 12)/(120 -90)

                                                     = 4/30

Therefore, expression of the rate per minute at which air freshener dispenses sprays is equal to fraction 4 over 30.

The complete question is :

The graph shows the number of sprays an automatic air freshener dispenses, y, in x minutes: A graph is shown. On the x-axis, the values are from 0 till 150 in increments of 30 for each grid line, and on the y-axis, the values are from 0 to 20 in increments of 4 for each grid line. The title of the graph on the x-axis is Time in minutes, and the title on the y-axis is Number of Sprays. A line is shown connecting ordered pairs 30, 4 and 60, 8 and 90, 12 and 120,16. The title for the graph is Dispense Rate. Which expression can be used to calculate the rate per minute at which the air freshener dispenses sprays?

fraction 4 over 30

fraction 30 over 4

fraction 30 over 16

fraction 16 over 30

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x+1= 10

Please step by step
Pre algebra

Answers

Answer: x=9

Step-by-step explanation:

x+1= 10

x-1+1=10-1

x=10-1

x=9

Complete the statement to describe the expression ab + cdab+cda, b, plus, c, d.
The expression consists of


terms, and each term contains

factors

Answers

The expression contains FOUR terms, each with TWO factors.

What are expressions?In mathematics, an expression is a sentence that contains at least two numbers or variables and at least one mathematical operation. This math operation can be addition, subtraction, multiplication, or division. An expression has the following structure: The expression is (Number/variable, Math Operator, Number/variable).

Expression information: In algebra, the word term defined the single numbers(10), variables(y), and the product of the two (10y).

In the following expression: ab+cd+ef+gh

There are four terms:

abcdefgh

A factor is a component of a product.

For the given equation, we will have four terms, each with two factors.

Therefore, the expression contains FOUR terms, each with TWO factors.

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The correct question is given below:
Complete the statement to describe the expression ab+cd+ef+ghab+cd+ef+gha, b, plus, c, d, plus, e, f, plus, g, h. The expression consists of ----- terms, and each term contains ----- factors. Please fill in the blanks!

I need help bc I got this one wrong twice lol.

Answers

The answer is H, B and C; And Z, K and R

Step-by-step explanation:

H, B and C; And Z, K and R form a straight line

HELP ASAP I DON'T UNDERSTAND​

Answers

Answer:

-2

Step-by-step explanation:

I did the math, trust me. Just input -2 into the x's and solve.

Answer:

D. x = -6

( 3x-6² - 30x-6 - 72 = 0 )

Step-by-step explanation:

So first you work out:

3x² = ( 3 x -6²) = -108

Then work out 30x = ( 30 x -6 ) = -180

-108 - -180 => 72

Then just do 72 - 72 =

Which would be 0! ☆*:.。.o(≧▽≦)o.。.:*☆

hope this helped! xx

(-6) over 5 x (-6) over 8

Answers

Answer:

(-6 ÷ 5) × (-6 ÷ 8) = 9/10 or 0.9

Step-by-step explanation:


Solve equation.
6 t-18=30

Answers

To solve the equation, add 18 to both sides, then divide by 6. The solution is t = 8.

A linear equation is an equation of which the highest degree of its variables is 1.

Steps to solve linear equations:

Simplify the expressions. If there are parentheses, remove them by multiplying the corresponding terms.Combine the same terms.Isolate the variable on one side by using subtraction of addition.Use division or multiplication to find the value of the variable.

Recall that if  we subtract or add the same number to both sides of an equation, it does not change the equality.

The given problem:

Solve 6t-18 = 30

The variable is t. Isolate the variable by adding 18 to both sides:

6t -18 +18 = 30 +18

6t = 48

Divide both sides by 6

6t : 6 = 48 : 6

t = 8 (solved)

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Solve the following inequality X-5 > 25
1. -20

Answers

Answer: x>10

Step-by-step explanation:

X-5 > 25-20

x-5+5>5+5

x>5+5

x>10

is sally has 3 apples and max has 3 apples, how much is all together

Answers

Answer:

6

Step-by-step explanation:

You count with your fingers. 1,2,3,4,5,6! Congrats you got your answer.

Sally and Max would have 6 apples all together because 3 + 3 = 6 :)

if you have a table of values like those above and you can find the value for f(n), how would you go about finding the value of f(n-1)? How do f(n) and f(n-1) compare to each other?

Answers

Answer:

spam question

Step-by-step explanation:

Answer:

If you have a table of values like those above and you can find the value for f(n) . you go about finding the value of f (n-1)

Step-by-step explanation:

a host served two pies, one apple and one cherry. dinner guests ate twenty-five percent of the apple pie and sixty percent of the cherry pie. in all, what fraction of the total pies remained? a 23/20 b 3/4 c 23/40 d 3/5

Answers

The fraction of the total pies remained is option (A) 23/20 is the correct answer.

In this question,

A host served two pies, one apple and one cherry.

Dinner guests ate twenty-five percent of the apple pie and sixty percent of the cherry pie.

Apple pie = 25%

∴ Remaining = 100% - 25%

⇒ 75%  

Fraction of apple pie remained is 3/4

Cherry pie = 60%

∴ Remaining = 100% - 60%

⇒ 40%

Fraction of cherry pie remained is 2/5

Thus fraction of the total pies remained is

⇒ 3/4 + 2/5

⇒ (15+8) / 20

⇒ 23/20

Hence we can conclude that the fraction of the total pies remained is option (A) 23/20 is the correct answer.

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this is very important... its for alegbra.. please help

Answers

Answer in decimal form = -0.2

Answer as a fraction = -1/5

=========================================================

Explanation:

The term "rate of change" is the same as "slope" for linear equations.

Use the slope formula to get the steps shown below.

[tex](x_1, y_1) = (-3, 3.6) \text{ and } (x_2, y_2) = (5, 2)\\\\m = \frac{y_2 - y_1}{x_2 - x_1}\\\\m = \frac{2-3.6}{5-(-3)}\\\\m = \frac{2-3.6}{5+3}\\\\m = \frac{-1.6}{8}\\\\m = \frac{-16}{80}\\\\m = -\frac{1}{5}\\\\m = -0.2\\\\[/tex]

The decimal value is exact without any rounding done to it.

A slope of -1/5 means we go down 1 unit and to the right 5 units.

slope = rise/run = -1/5

rise = -1 = go down 1

run = 5 = go to the right 5

What value of x cannot be evaluated in the function r(x)?​

Answers

is there a picture

what is the final step to be performed in the mathematical expression, (σx)2? group of answer choices square the sum of the scores square each score add the squared scores add the scores

Answers

The final step to be performed in the mathematical expression, (Σx)2 is square the sum of the scores

What Is the Sum of Squares?

Sum of squares is a statistical method for calculating the dispersion of data points in regression analysis. By deviating the least from the data, the sum of squares can be used to identify the function that fits the data the best. The purpose of a regression analysis is to assess how well a data series can be fitted to a function that could provide insight into the process by which the data series was created. In the world of finance, the sum of squares can be used to calculate the variation in asset values.

A statistical measure of departure from the mean is the sum of squares. Variation is another name for it. The squared differences of each data point are added together to calculate it. The sum of squares is calculated by squaring the separation between each data point and the line of best fit, then adding the results. The line of greatest fit will reduce this value to the minimum.

We first find the sum, and then square the sum.

ΣX = 1 + 0 + 2 + 4 = 7

So,  ΣX + 1 = 8

Mean = ( 4+6+14 )/3 = 8

Mean =  ΣX*f /  Σf = (5*2 + 4*1 + 3*3 + 2*2 + 1*2) / (2+1+3+2+2) = 29/10

Subtract 3 points from the score X=3

Changing the lowest score to a lower one will increase the range.

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The final step to be performed in the mathematical expression, (Σx)2 is square the sum of the scores

What Is the Sum of Squares?

Sum of squares is a statistical method for calculating the dispersion of data points in regression analysis. By deviating the least from the data, the sum of squares can be used to identify the function that fits the data the best. The purpose of a regression analysis is to assess how well a data series can be fitted to a function that could provide insight into the process by which the data series was created. In the world of finance, the sum of squares can be used to calculate the variation in asset values.

A statistical measure of departure from the mean is the sum of squares. Variation is another name for it. The squared differences of each data point are added together to calculate it. The sum of squares is calculated by squaring the separation between each data point and the line of best fit, then adding the results. The line of greatest fit will reduce this value to the minimum.

We first find the sum, and then square the sum.

ΣX = 1 + 0 + 2 + 4 = 7

So,  ΣX + 1 = 8

Mean = ( 4+6+14 )/3 = 8

Mean =  ΣX*f /  Σf = (5*2 + 4*1 + 3*3 + 2*2 + 1*2) / (2+1+3+2+2) = 29/10

Subtract 3 points from the score X=3

Changing the lowest score to a lower one will increase the range.

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Which is equivalent to 3^√8*?

Answers

Answer:

C (8 to the x/3 power)

what is the area of triangle pqr on the grid? a triangle pqr is shown on a grid. the vertex p is on ordered pair 7 and 6, vertex q is on ordered pair 1 and 6, and the vertex r is on ordered pair 4 and 2.

Answers

The area of triangle par on the grid is the vertex p is on ordered pair 7 and 6.

What is vertex?

Soccer on CBS Sports is various TV programs that have broadcasted soccer matches in the US on CBS, CBS Sports Organization, and Paramount+. These matches are from Global, European, and American contests. Affiliation football, all the more usually known as just football or soccer, is a group activity played between two groups of 11 players who essentially utilize their feet to impel the ball around a rectangular field called a pitch. Soccer, or football as it's known beyond North America, is the most famous game on the planet. Thus, how could it be played, who plays it, and a lot more inquiries are responded to here.

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Quadrilateral a has side lengths 2,3,5 and 6. quadrilateral b has single length 4,5,8 and 10 could one of the quadrilateral be a scale copy of the other

Answers

Quadrilateral b, is not a scaled copy of Quadrilateral a.

The side length of Quadrilateral a=2,3,5, and 6.

The side length of Quadrilateral b=4,5,8 and 10

Now comparing the Ratio of the Corresponding Sides of two quadrilaterals a and b

2/4 ≠ 5/8

3/5 ≠  6/10

Since the ratio of corresponding opposite sides is not equal. The two Quadrilateral are Not Similar.

So, We can say that Quadrilateral b, is not a scaled copy of Quadrilateral a.

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PLEASE HELP URGENTLY

Answers

Answer:

A) (4,1)

B) (2,-1)


The vertex of ∠A B C is located at the origin. Point A is located at (5,0) and Point C is located at (0,2). How can ∠A B C be classified?
A. acute
C. right
B. obtuse
D. scalene

Answers

As the angle is greater than 0° and less than 90°, then the angle ABC is acute. (Answer: A)

How to determine the features of an angle set on Cartesian plane

Herein we find the locations of the three vertices of the figure, of which we must determine the lengths of the two sides of the angle and determine the value of the angle by trigonometry:

BA = 5, BC = 2

θ = tan⁻¹ (BA / BC)

θ = tan⁻¹ (5 / 2)

θ ≈ 68.199°

As the angle is greater than 0° and less than 90°, then the angle ABC is acute. (Answer: A)

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If you have a right triangle with 36 square units. what is the scaled value if you go 2-1 , 3-1?

Answers

Answer:

324, 900, 9

Step-by-step explanation:

When a shape has its size increased by a scale factor, the size of its lengths are multiplied by this scale factor, yet its area is actually multiplied by the scale factor squared. This is due to two lengths being multiplied to contribute to the area, not just one. If it was a volume, you would multiply by the scale factor cubed!

Onto the answer, just follow the advice above:

36 * 3^2 = 36 * 9 = 324 square inches,

36 * 5^2 = 36 * 25 = 900 square inches,

36 * 0.5^2 = 36 * 0.25 = 9 square inches.

Hope this helps :)

Question is below
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|
|
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V

Answers

The expression, evaluated to the simplest form is -4

Simplifying an expression

From the question, we are to simplify the given expression

The given expression is

(9² + 19)/(10² - 5³)

Simplifying the expression

(9² + 19)/(10² - 5³)

9² = 81

10² = 100

5³ = 125

Thus,

The expression becomes

(81 + 19)/(100 - 125)

= 100/-25

= -4

Hence, the expression, evaluated to the simplest form is -4

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