if 5 pens cost £4 what is the cost of 1 pen​

Answers

Answer 1

Answer:

/the cost of 1 pen is $2

Step-by-step explanation:

sana makatulong

Answer 2

Answer:

Step-by-step explanation:

5 pens=4euros

1 pen=`x

4 euros=5x

0.8 euros=x

1 pen = 0.8 euros


Related Questions

78 decreased by half a number is 45 Find the number

Answers

78 - 45 = 33
Since it’s half a number you do
33 x 2 = 66
So the answer is 66

Answer:

number is 66

Step-by-step explanation:

let the number be n , then

78 - [tex]\frac{1}{2}[/tex] n = 45 ( subtract 78 from both sides )

- [tex]\frac{1}{2}[/tex] n = - 33 ( multiply both sides by - 2 to clear the fraction )

n = 66

The required number is 66

if Ray OC stands on a line AB such that angle AOC = angle COB then s.t angle AOCis equals to 90​

Answers

Answer:

Since ray OC stands on line AB.  

Therefore

∠AOC + ∠COB = 180° (Linear pair of angles)

But ∠AOC = ∠COB (given)

⇒ 2∠AOC = 180°

⇒ ∠AOC = 90

Step-by-step explanation:

what is 19 divided by $25.65 ​

Answers

Answer: $20.78

Step-by-step explanation:

what is the answer, i tried everything but i can’t seem to get the right answer

Answers

Answer:A

Step-by-step explanation: It never talks about 50 so i don't know why that is there so I think it is A because 21 dollars is more than 5+2.75, (not 100% sure but at least 85% sure)

Answer:

A

Step-by-step explanation:

The reason that this is A is because 5$ is the initial fee and you dont pay any more than that, since 21$ is the max you can afford it is going to be less than or equal to 21. and if it is 2.75$ per stop then it is the number of stops times 2.75. A is your answer.

edit: and the 50 kilometers doesnt have any value in the situation so basically it was just there to confuse you or throw you off.

The width of a rectangular parking lot at the meadowlands is 3/8 mile. If the area is 5/8 square mile, what is the length of the parking lot

Answers

let width is x and length is y

x * y = area

=> 3/8 * y = 5/8

=> y = 5/8 ÷ 3/8

=> y = 5/8 * 8/3 = 5/3

the length of the rectangular parking lot is 5/8 mile.

In how many different ways can change be given for a 50 cent coin using only 20 cent, 10 cent, and 5 cent coins? Justify your answer.

Answers

Answer: 9

Step-by-step explanation:

20+20+10

20+10+10+10

20+10+5+5+5+5

10+10+10+10+10

10+10+10+10+5+5

10+10+10+5+5+5+5

10+10+5+5+5+5+5+5

10+5+5+5+5+5+5+5+5

5+5+5+5+5+5+5+5+5+5

Answer: 13 ways

Step-by-step explanation:

use the properties of addition to help

one way to solve this problem is

20+20+10

another way is

20+10+10+5+5

DOES ANYONE KNOW HOW TO DO THIS? DUE AT 11 TONIGHT PLS HELP!

High demand cars that are also in low supply tend to retain their value better than other cars. The data in the table are for a car that won a resale value award.

Enter a function to represent the car's value over time, assuming that the car's value is linear for the first 5 years.


According to your model, how much did the car's value drop the day it was purchased and driven off the lot?




Do you think the linear model would still be useful after 10 years? Explain.


uppose you used months instead of years to write a function. How would your model change

Answers

Answer:

No because its -10 per year so after 10 years the car value will go below zero which makes it useless

Step-by-step explanation:

Step-by-step explanation:

Given the table of values where it represents the relationship between the change in value of a car and number of years.

Slope:

Before we can establish the linear equation, we need to determine its slope by using two ordered pairs from the table.  

Let (x₁, y₁) = (1, 84)

     (x₂, y₂) = (3, 64)

Substitute these values into the following slope formula:

m = (y₂ - y₁)/(x₂ - x₁)

m = (64 - 84)/(3 - 1)

m = -20/2

m = -10

Therefore, the slope of the linear function is -10.

1. Enter a function to represent the car's value over time, assuming that the car's value is linear for the first 5 years.

Assuming that the car's depreciation in value is linear for the first 5 years, then we can establish the following function:

Next, using one of the given ordered pairs from the table, (1, 84), and the slope, m = -10, substitute these values into the slope-intercept form to solve for the value of the car at x = 0 (the y-intercept, b ):    

84 = -10(1) + b

84 = -10 + b

Add 10 to both sides to isolate b:

84 + 10 = -10 + 10 + b

94 = b

Therefore, the linear function is f(x) = -10x + 94.

To verify whether this is the correct function to represent the given linear model, substitute the values for year 5, where the car's value is at 44%:

f(5) = -10(5) + 94

f(5) = -50 + 94

f(5) = 44  ⇒ This matches the value from the given table, where it implies that at year 5, the value of the car is 44%.           

2. According to your model, how much did the car's value drop the day it was purchased and driven off the lot?

Since the car's value is expressed in percentage (%), then it means that at year = 0, the car's value is 100%.  The value of the car in year 1 is 84%.

Therefore, the car's value will decrease by 16% from the day it was purchased (at year = 0) through year 1.    

To determine the value of the car the day it was purchased and driven off the lot:

Let x = 1 out of 365 days = 1/365 = 0.0027

f(0.0027) = -10(0.0027) + 94

f(0.0027) = -10(0.0027) + 94

f(0.0027) = -0.027 + 94

f(0.0027) = 93.973

The car's value at Day 1 is 93.97%, which means that it decreased by 6%.              

3. Do you think the linear model would still be useful after 10 years? Explain.

In order to determine whether the linear model would still be useful after 10 years, let x = 10:

f(x) = -10x + 94

f(10) = -10(10) + 94

f(10) = -100 + 94

f(10) = -100 + 94

f(10) = -6

The value of the car by the 10th year will be -6%, implying that it is no longer useful by year 10.  The linear model is only useful up to the 9th year:

f(9) = -10(9) + 94

f(9) = -90 + 94

f(9) = 4 ⇒ The car's value by the 9th year is 4%.

4. Suppose you used months instead of years to write a function. How would your model change?

Since in the original function, x represents the number of years, and there are 12 months in a year:

Let 12x = 12 months × 1 year

Substitute 12x as an input into the original function:

f(x) = -10x + 94

f(x) = -10(12x) + 94

f(x) = -120x + 94 ⇒ This represents the function that models linear relationship between the percentage value of a car relative to the number of months that the car is driven.

Part A: The area of a square is (4x2 + 20x + 25) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work. (5 points)
Part B: The area of a rectangle is (4x2 − 9y2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work. (5 points)

Answers

Answer:

Step-by-step explanation:

4x² + 20x + 25 = (2x)² + 2* 2x *5 + 5²

{Compare with a² + 2ab + b² = (a+ b)²}

                         = (2x + 5)²

                         = (2x +5)*(2x+5)

Side of the square = 2x+ 5

Answer:

Part A is (2x+5)^2. Part B is  (2x+3y)(2x-3y).

Step-by-step explanation:

Part A: The polynomial is prime. When you split the middle term, it becomes 4x^2+10x+10x+25. Then rewrite using the common factor from the two pairs. 2x(2x+5)+5(2x+5). Rewrite in factored form, which is (2x+5)(2x+5). Then combine which is, (2x+5)^2. The length of each side is (2x+5)^2.

Part B: The polynomial is prime. Rewrite 4x^2 as (2x)^2 and 9y^2 as (3y)^2, which looks like (2x)^2-(3y)^2. Both terms are perfect squares. The answer is (2x+3y)(2x-3y).

HELP1!!1!!1!


Solve your word problem using a model. Use complete sentences to describe your model, and interpret the quotient in the context of your word problem. If you wish, you may upload a copy of your model.

Answers

The model [tex]x = \frac{6}{3}[/tex], can be used to solve the world problem representing a scenario where John wants to share 6 apples amongst his three friends. x = 2, is the quotient which is interpreted as the number of apples each of John's friend will get.

Word problem describes real world situations which can be translated into expressions as a model.

For example, if John has 6 apples and John has three friends, how many apples would each of the friend get (x) if he is to share the 6 apples amongst the three of them?

To solve this, we can model the situation as follows:

Let x represent the number of apples each friend would get (quotient).

Thus:

[tex]x = \frac{6}{3}\\\\\mathbf{x = 2}[/tex]

The quotient (x) in this model can be interpreted as the number of apples each of John's friend will get.

Thus, the model [tex]x = \frac{6}{3}[/tex], can be used to solve the world problem representing a scenario where John wants to share 6 apples amongst his three friends. x = 2, is the quotient which is interpreted as the number of apples each of John's friend will get.

Learn more here:

https://brainly.com/question/13818690

The value of y is directly proportional to x.

Find the constant of proportionality when x = 12 and y = 3.

Answers

Step-by-step explanation:

x=12

y=3

where k is a constant

k=12

=3

cross multiply

3k=x(when x is 12)

where k is a constant

help me now right now because i ran out of skips

Answers

Answer:

no question

Step-by-step explanation:

sorry I cant help there's no question

Answer:

Help with what?

Step-by-step explanation:

There is no question.

If y = ax² + bx + c is the general form of a quadratic function, what is y = a(x - h)² + k? *
a. vertex form
b. general equation
c. point-slope form
d. slope-intercept form

How necessary is the value of a, b and c in transforming quadratic function from general to vertex form? *
a. to find the value of h and k
b. to find the number of roots
c. to determine the degree of the quadratic function
d. to determine the maximum point​

Answers

Step-by-step explanation:

it is the vertex form.

remember, (h, k) is the vertex point.

the vertex being the point of the (quadratic) parabola, where the curve turns around.

depending on the orientation of the parabola (vertex up or vertex down) as defined by the sign of a, this is either the minimum or the maximum of the curve.

so, the first a. is correct.

and so is the second a., as they play an important role when completing the square and hence finishing the transformation.

Which of the following must be true?

Answers

Answer:

answer is B because in the property of parallelogram it says ad is parallel to bc

5.3h + 3 = 18.8

A. 2.98
B. 4.11
C. -4.11
D. -2.98​

Answers

Answer:

If you're trying to find h, then the answer is A.

Step-by-step explanation:

5.3 x 2.98 = 15.79, which rounds up to 15.8.

15.8 + 3 = 18.8

Answer:

A. 2.98

Step-by-step explanation:

When you substitute h for the answers shown, you get different numbers.

When you substitute h for 2.98 you are given 15.794

15.794 + 3 is 18.794

Rounding 18.794 to the next tenth is 18.8

Answer: A. 2.98

what does 130°30' mean

Answers

130 degrees and 30 minutes

That's minutes as in arc-minutes, a sub-division of a degree. 1 degree is made up of 60 minutes.

So 130°30' is the same as 130° + 30/60° = 130.5°.

5) Simone was solving an equation with the variable b. When she solved the equation
she found that the equation had infinitely many solutions, which equation could be
Simone's equation after the solved it?
a. b-2
b. -2=-2
C.-2--1
D. B=0

6) The graph shows that the amount of water in gallons
that has leaked out of a tank depends on the number
of minutes that have passed.
What is the unit rate of the leaking water?
a. 3 gallons per minute
b. 6 gallons per minute
c. 1 gallon per minute
d. 3/4 gallon per minute






Answers

Answer:

5) b

6) d

Step-by-step explanation:

What is the value of x?

Answers

400 I think but I’m wrong I don’t give answers to stranger gurl xx

Answer:

I think its is 7 cm hope this helped (◡‿◡< 3) .

Step-by-step explanation:

What is the value of x?

IF A MOVING POINT GENERATES AN ANGLE EQUAL TO 45 DEGREE ,WHAT IS THE VALUE OF THE COSIN FUNCTION AT THE POINT​

Answers

Answer:

[tex]\frac{\sqrt{2}}{2}[/tex]

Step-by-step explanation:

You can find this by looking at a unit circle and locating 45 degrees, and finding the x coordinate at that point.

Choose the graph that represents the following system of inequalities: y ≥ −3x + 1 y ≤ 1 over 2x + 3 In each graph, the area for f(x) is shaded and labeled A, the area for g(x) is shaded and labeled B, and the area where they have shading in common is labeled AB.

Pls hurry- ill give 100 points.

Answers

C. Graph of two intersecting lines. Both lines are solid. One line passes g of x through points negative 2, 2 and 0, 3 and is shaded below the line. The other line f of x passes through points 0, 1, and 1, negative 2, and is shaded below the line.

Answer:

Graph of two intersecting lines. Both lines are solid. One line passes g of x through points negative 2, 2 and 0, 3 and is shaded below the line. The other line f of x passes through points 0, 1, and 1, negative 2, and is shaded below the line.

Step-by-step explanation:

PLS helppppppppppppp

Answers

Answer:

y=-5, x=-1

Step-by-step explanation:

y=5x

/5 /5

y/5=x

y=9(y/5)+4

y=-5

-5=5x

/5   /5

-1=x

1 trig review please please help

Answers

Answer:

[tex] \sqrt{73} mi[/tex]

simplify root 12 over root 3

Answers

Answer:

4

3

Step-by-step explanation:

pls mark brainliest if possible

Help please! !!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

the answer is -16(t-2)(t+1)

Step-by-step explanation:

A soccer game is 90 minutes long. 36 minutes have passed. What percentage of the game has passed?​

Answers

Answer:

The answer is 40%

Step-by-step explanation:

Answer:

40% increase

Step-by-step explanation:

90 - 36 = 54

90 - 54 = 36

36 / 90 = 0.4

0.4 x 100 = 40%

Write an equation of the line in slope-intercept form.



The equation is y=
.

Answers

Answer:

y = x + 2

Step-by-step explanation:

     Slope-intercept form is y = mx + b where m is the slope and b is the y-intercept. Here, b is equal to 2 because the line crosses the y-axis at 2. THe slope is rise over run, or the change in y divided by the change in x. From the two points given, we get 3/3 which is equal to 1. 1x equals x, so this gives us "no slope." Putting it together gives us y = x + 2.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

pls help me I give brainly

Answers

Answer:

B is the answer

Step-by-step explanation:

this is showing 2 being divided by 9 which must give a value less than one, in this case it is .2 repeating

A right triangle is one that contains a ______ degree angle​

Answers

Answer:

90 degrees

Step-by-step explanation:

......

Answer: 90 degree angle.

Step-by-step explanation: A right triangle must have a right angle.

If x = -2, what does y equal if y = x3 + 7?

Answers

Answer:

y=1

Step-by-step explanation:

you plug-2 in for x and then the problem looks like this y=-2(3)+7.

then you follow order of operations and multiply-2 and 3, and you get -6 so the problem now looks like y=-6+7.

you then add -6 and 7 and you get 1. now the problem looks like y=1 and you are finished.

Kent drank
2
3
liter of water Monday before going jogging. He drank
3
4
liter of water after his jog. How much water did Kent drink altogether? Write your answer as a mixed number.

Answers

Answer: 1 5/12

Because 2/3 + 3/4 = 17/12, if you simplify that it would be 1 5/12

Three sisters have ages that are consecutive odd integers. The sum of the age of the youngest and three times the age of the oldest is five less than five times the middle sister’s age.

Answers

Answer:

youngest   17  

middle  19

oldest    21

Step-by-step explanation:

Three sisters have ages that are consecutive odd integers

youngest = x

middle = x + 2

oldest = x + 4

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

The sum of the age of the youngest

x

and three times the age of the oldest

+ 3(x + 4)

is five less than five times the middle sister’s age

= 5(x + 2) - 5

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

x + 3(x + 4) = 5(x + 2) - 5

Distribute

x + 3x + 12 = 5x + 10 - 5

Combine like terms

4x + 12 = 5x - 5

Subtract 4x from both sides

12 = x - 5

Add 5 to both sides

17 = x

youngest   x = 17  

middle     x + 2 = 19

oldest     x + 4 = 21

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