Someone please help me

Step-by-step explanation:

4n

it is 4 times the price of 1 notebook "n".

so the expression actually represents the cost of buying 4 notebooks and 1 pen.

n represents the cost of one notebook.

4n is the cost of 4 notebooks.

The study and use of numbers, their connections, and mathematical observations are topics covered by the area of mathematics known as arithmetic. The fundamental ideas in number theory, measurement, and calculation are frequently referred to as "arithmetic" (which is derived from the Greek word "arithmos," "number") (that is, the processes of addition, subtraction, multiplication, division, raising to powers, and extraction of roots).

As per the given data in the question:

Cost of one pen = $2.50

The expression that represents the cost of buying 4 notebooks

and a pen = 4n+ 2.50

For finding the product in the expression:

The product is 4n {4 multiplied by n}

Here, n represents the cost of one notebook.

Hence, 4n is the cost of 4 notebooks.

To learn more about arithmetic, click:

brainly.com/question/23848329

#SPJ2

The standard deviation is 8.

Data dispersion in regard to the mean is quantified by a standard deviation, or. Data are said to be more closely grouped around the mean when the standard deviation is low and more dispersed when the standard deviation is high. A measure of a group of values' variance or dispersion in statistics is called the standard deviation. The values tend to be close to the set's mean when the standard deviation is low, while the values are dispersed over a larger range when the standard deviation is high. The dispersion of the data around the mean value is measured by the standard deviation. It might be helpful when comparing data sets that may have the same mean but a different range.

To know more about standard deviation ,visit:

brainly.com/question/13905583

#SPJ4

Answer:

$1,230.77

Step-by-step explanation:

Bi-weekly: every two weeks

52 weeks in a year÷ 2= 26

Julian gets paid 26 weeks out of the year

$32,000÷26=$1230.769231

about $1,230.77 on paychecks

Answer:

she will earn $64,000

because $32,000 +$32,000= 64,000

Step-by-step explanation:

biweekly paycheck for 2weeks so I added the number so it will be multiple times 2 week s

Answer:

la respuesta es 10.3199...

Step-by-step explanation:

solo divides 100 por 9.69

Answer:

e=32, f=79, d=69

Step-by-step explanation:

32 and e are vertical angles, so they share the same value. Same with 69 and d. 69+e+f=180, so process of elimination gives you your answer. Lmk if you need any more help or a better explanation, hope you get ungrounded !

Answer:

f = 79 , e = 32 , d = 69

Step-by-step explanation:

32 + 69 + f = 180

101 + f = 180

f = 79

----------------------------------------------------

69 + 79 + e = 180

148 + e = 180

e = 32

Answer:

2

Step-by-step explanation:

→ Find 2 points

( 3, 5 ) and ( 2 , 3 )

→ Find the change in y coordinates

3 - 5 = -2

→ Find the change in x coordinates

2 - 3 = -1

→ Divide y by x

-2 ÷ -1 = 2

In thia problem we have that

m<1 and m< 2 are consecutive interior angles

that means

m<1+m<2=180 ------> supplementary angles

substitute the given values

4x+16+2x-22=180

solve for x

6x-6=180

6x=180+6

6x=186

x=31

Find the value of m<1

m<1=4(31)+16

m<1=140 degrees

Answer:

It's A

Step-by-step explanation:

Answer:

x = 5

Step-by-step explanation:

Take your starting equation:

5x - 6 = 2x + 9

Your first step should be to isolate the variable, X, by having it on only one side of the equation. This can be done by subtracting one of the X values (either 5x or 2x) from either side, but I recommend the side with 2x since it's a smaller value and won't result in a negative.

(This is the right side of the equation)

2x + 9

- 2x

= 9

We need to do the same thing on the other side of the equation too, to balance both sides:

(This is the left side of the equation)

5x - 6

- 2x

= 3x - 6

This is our equation now:

3x - 6 = 9

The next step is to isolate X further by removing any constants (regular numbers) from the side with X. Since the constant on that side is -6, we need to add 6 to that side so that it's cancelled out, and do the same on the other side to balance.

(This is the left side of the equation)

3x - 6

+ 6

= 3x

And now for the other side:

(This is the right side of the equation)

9

+ 6

= 15

This is our current equation:

3x = 15

The final step is to get X completely isolated. X is being multiplied by 3, so we need to divide both sides of the equation by 3 to finally get the value of X.

(This is the left side of the equation)

3x

÷ 3

= x

And now for the other side:

(This is the right side of the equation)

15

÷ 3

= 5

Our final equation:

x = 5

We can check our answer by taking the final X value, 5, and inserting it into our beginning equation.

This is the beginning equation, as a reminder:

5x - 6 = 2x + 9

Replace all instances of X with its value, 5:

(5 · 5) - 6 = (2 · 5) + 9

After simplifying, the result is:

19 = 19, which means the X value is correct.

Answer: p=$1.47 c=$1.98 b=$1.20

Step-by-step explanation: Hope this helps!<3

Answer:

[tex] \frac{2}{5} {x}^{2} [/tex]

Step-by-step explanation:

x²/3(6/5)

=2/5x²

Answer:

[tex]=\frac{4x}{5}[/tex]

Step-by-step explanation:

[tex]\frac{\left(x\frac{2}{3}\right)\cdot \:6}{5}=\frac{4x}{5}[/tex]

Remove parentheses: :3

[tex]=\frac{x\frac{2}{3}\cdot \:6}{5}[/tex]

Multiply [tex]x\frac{2}{3} * 6 : 4x[/tex]

ANd u get

[tex]=\frac{4x}{5}[/tex]

hope thjis helps

~~Wadfads~~

Answer:

jahajshsisjsjssk sjshejei sjshshisbs

Using fractions, The faster one is : Robert

A fraction, which also symbolizes a piece of a whole, is a mathematical symbol for any number of equal parts. A fraction, such as one-half, eight-fifths, and three-quarters, denotes the number of components of a specific size when used in conversational English.

By converting the incorrect fraction, produce an appropriate fraction.

Jocab travels 5 miles in 1 1/2 hours; therefore, 1 1/2 hours is 3/2 hours in minutes, or 3/2 x 60 minutes.

Robert: Three miles in seventy-five minutes = forty-five minutes.

If Robert runs 3 miles in 45 minutes, he completes 6 miles, as opposed to Jocab's 5 miles in 90 minutes.

Robert thus moved more quickly than Jocab.

To learn more about Fraction click on the link

https://brainly.com/question/20323470

#SPJ13

The term that best describe the quadrilateral formed by the points A(2, 3), B(4, 6), C(8, 9), and D(5, 5) is option D. Kite

Quadrilateral:

A quadrilateral is the closed shape and a type of polygon that has four sides, four vertices and four angles.

The distance of the tow points can be calculated by using the formula,

d = √(x₂ - x₁)² + (y₂ - y₁)²

Where

(x₁, y₁) and (x₂, y₂) represents the coordinates of the two endpoints on the side

Given,

Here we have the points  A(2, 3), B(4, 6), C(8, 9), and D(5, 5) that forms the quadrilateral.

And we need to find the shape of the quadrilateral.

Let us consider the coordinates of the vertices of the quadrilateral are A(2, 3), B(4, 6), C(8, 9), and D(5, 5),

To find its shape, we have to calculate the length of the sides of the quadrilateral can be found using the distance formula.

For side AB, we have the distance of

d1 = √(6 - 3)² + (4  - 2)²

d1 = √13

For side BC, we have the distance of

d2 = √(9 - 6)² + (8 - 4)²

d2 = √9 + 16

d2 = √25

d2 = 5

Now we have to take side CD,

d3 = √(5 - 9)² + (5 - 8)²

d3 = √16 + 9

d3 = √25

d3 = 5

Finally, side DA, we have;

d1 = √(3 - 5)² + (2  - 5)²

d1 = √13

Therefore, the given quadrilateral has two pairs of equal adjacent sides and the angles are equal at the meeting point of the two squares, it is best described as a kite.

To know more about Quadrilateral here.

https://brainly.com/question/13805601

#SPJ1

The probability of getting a pink bead out of the storage box containing a sum total of 175 beads is 0.1428

As per the question statement, we are supposed to find the probability of getting a pink bead out of the storage box containing a sum total of 175 beads.

It is given that there are 25 pink beads in the storage box.

Probability = Favorable outcome / Total value

Probability = 25/175

Probability = 0.1428

Hence, the probability of getting a pink bead out of the storage box containing a sum total of 175 beads is 0.1428

To learn more about probability and similar concept, click on the link given below:

https://brainly.com/question/11234923

#SPJ1

Answer:

second graph

Step-by-step explanation:

the graph of a proportional relationship is a straight line passing through the origin.

the only graph with points which lie on a straight line with a point at the origin is the second graph.

We need to find the angle (rounded to the nearest whole degree) of a circle that would represent the percent of students taking mathematics.

Since a complete turn around the circle has 360º, we have the following proportion:

Number of students Angle

734 360º

442 x

Then, cross multiplying the above values, we obtain:

Answer: 217º

Answer:

217°

Step-by-step explanation:

The fraction of students taking math is   442/734

 we need this same fraction of the 360 degrees in a circle

442/734 * 360 = 217°

3x = 27

3x = 27 x

3x = 27/3

x. = 9

Answer:

Step-by-step explanation:

square root 12 lies between (square root 9 and 16) so it is between 3 and 4

To find out the equation of the line we need two points

so

we take

(1,-3) and (2,-9)

step 1

Find the slope

m=(-9+3)/(2-1)

m=-6/1

m=-6

step 2

Find the equation in slope intercept form

y=mx+b

we have

m=-6

point (1,-3)

substitute

-3=-6(1)+b

solve for b

-3=-6+b

b=6-3

b=3

therefore

The data are listed in ascending order to be:

MEAN

The mean is the average of a data set. This can be calculated using the formula:

From the question, we can calculate the mean to be:

The mean is 33.

MEDIAN

The median is the middle of the set of numbers.

The middle terms are 40 and 42. Therefore, the median will be the average of the two numbers:

The median is 41.

MODE

The mode is the most common number in a data set.

The modes of the data are 3, 18, 19, 40, 42, 43, 48, and 51.

The expression in standard form can be written as - ( 2s² + 9s + 1 ) .

Given ; D = 1 - s^2

And given C = 3 + 3s

To find : 2D - 3C

Thus we can write it as ;

2 ( 1 - s²) - 3 (3 + 3s )

After opening the brackets we get;

2 - 2s² - 3 - 9s

Thus first we have to look for like terms as here there is a quadratic expression

we get

- 2s² - 9s -1

We can also take the minus sign common and then we will get

- ( 2s² + 9s + 1 )

Thus 2D - 3C when expressed in standard form we get - ( 2s² + 9s + 1 ) .

To know more about substituting values you may go through the link which is mentioned below:

https://brainly.com/question/19516092

#SPJ1

The slope intercept form equation of the line g is y = 2x + 13

Slope intercept form:

Slope intercept form the graph of a straight line and  it is represented in the form of

y=mx + c

where

m represents the slope of the line

c represents the intercept of the line

Given,

Here we have the line f and g. f is parallel to g.

The equation of f is y = 2x - 5. And the line is passed through the points (-6,1).

Now, we need to find the equation of the line g.

We know that, if two lines are parallel if their slopes are equal and but they have different y-intercepts.

Based on this theory, while we looking into the equation of the line f we have easily identified that the slope of line g is also 2.

Now, we have to find the intercept,

For that, we ahve to apply the point and slope on to the standard form,

Then we get,

1 = 2(-6) + c

1 = -12 + c

c = 13

Therefore, the intercept is 13.

Then the equation of the line g is,

y = 2x +13

To know more about Slope intercept form here.

https://brainly.com/question/9682526

#SPJ1

Answer: 25.75

Step-by-step explanation: 103 divided by 4 = 25.75

Answer: The answer is $2009.04

Step-by-step explanation:

I hope this helps.

To know the inverse function, we have to change variables of the original function as follows:

Isolating for y:

Thus, the inverse function is:

Based on the latter, we can see that the intersection with y -axis = 1, coordinate (0, 1). While the intersection with x - axis = 3, coordinate (3, 0)

Answer: C. Y

If the football team started a play on the 50-yard line, gained 7 yards, and then lost 10 yards on the next play, the ball would be on the 47-yard line at the conclusion of the second play.

The 50-yard line is where the start is.

After the opening play, the football team gained 7 yards.

After the first play, the new yard line equals (the starting point) plus (Number of yards gained)

following the conclusion of the first play, the new yard line

If a football team started a play on the 50-yard line, gained 7 yards, and then lost 10 yards on the next play, the ball would be on the 47-yard line at the conclusion of the second play.

After the first play, the new yard line is equal to 50 plus 7.

After the first play, the new yard line is the 57-yard line.

The second play cost the football team 10 yards.

The yard line following the conclusion of the second play equals the yard line following the conclusion of the first play (The number of yards lost)

The new yard line following the conclusion of the second play is 57-10.

47 is the new yard line following the conclusion of the second play.

The second half of the second

47 is the new yard line following the conclusion of the second play.

The ball was on the 47-yard line after the second play when it was over.

To learn about football yard line questions, refer to the following link.

https://brainly.com/question/28309697

#SPJ1

Sandy hiked 13.6 miles on Sunday

The correct option is option c)

What is subtraction?

Subtraction is a basic arithmetic operation in which we remove a number from another number. the other arithmetic operations include addition ,multiplication and division

We are given that, Sandy hiked a total of 37.8 miles in 3 days.

Also that She hiked 12.3 miles on Friday and 11.9 miles on Saturday.

Let the miles hiked by her on Sunday be x

Hence the equation can be given as

37.8=12.3+11.9+x

x=37.8 - 24.2

x= 13.6 miles

Sandy hiked 13.6 miles on Sunday

Hence the correct option is option c)

To learn more about subtraction please refer

https://brainly.com/question/13378503

#SPJ13

Answer:

Where is the question???