1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anestetic [448]
3 years ago
15

Barbara buys a box of pens for $4. For every additional box she buys, she gets a $1 discount. Which expression represents the to

tal cost of the pens, c, as a function of the number of boxes, b?
A. c=f(b)=4b-1
B. c=f(b)=4b+1
C. c=f(b)=3b+4
D. c=f(b)=4b+3
E. c=f(b)=4+3(b-1)
Mathematics
2 answers:
Daniel [21]3 years ago
5 0

Answer:

the answer is E !!!!!!!!!!!!!!!!!!!   ; )


Alla [95]3 years ago
5 0

Answer:

E. c(b)=4+3(b-1)

Step-by-step explanation:

Let b represent the number of boxes.

We have been given that Barbara buys a box of pens for $4, so the cost of 1st box will be $4.

Now the number of boxes without 1st box will be b-1.

We are also told that for every additional box she buys, she gets a $1 discount, so the cost of b boxes without 1st box will be 3(b-1).

The total cost of all the boxes will be cost of 1st box plus cost of b boxes.

\text{Total cost of boxes}=4+3(b-1)

Since we need to represent the total cost of the pens, c, as a function of the number of boxes (b), so our function will be:

c(b)=4+3(b-1)

Therefore, our required function is c(b)=4+3(b-1) and option E is the correct choice.

You might be interested in
The positive integer k has exactly two positive prime factors, 3 and 7. if k has a total of 6 positive factors, including 1 and
Sav [38]
I think there are two solutions, 63 or 147:

63 = 3² x 7, factors  1 | 3 | 7 | 9 | 21 | 63<span>
147 = 3 x 7</span>², factors 1 | 3 | 7 | 21 | 49 | 147
5 0
3 years ago
What is the coordinetes for B
ira [324]

Answer:

(-1,0)

Step-by-step explanation:

Point B is located one position to the left on the x-axis resulting in a negative x-value in the coordinate pair, and Point B is located 0 units up on the graph resulting in a y-value of 0. Therefore, (-1,0) are the coordinates.

5 0
3 years ago
What is the formula for calculating a residual value
Ksivusya [100]
The formula to figure residual value follows: Residual Value = The percent of the cost you are able to recover from the sale of an item x The original cost of the item. For example, if you purchased a $1,000 item and you were able to recover 10% of its cost when you sold it the residual value is $100!!
7 0
2 years ago
Read 2 more answers
The volume code of a cube is given by s to the third power, where s is this side length of the cube. What is the difference of t
yKpoI14uk [10]

Answer:

61 m^3

Step-by-step explanation:

The difference in volume is (5 m)^3 - (4 m)^3, or (125 - 64) m^3, or

61 m^3

6 0
3 years ago
Read 2 more answers
Any volunteer please help
den301095 [7]

Answer:

Part A)

The equation in the point-slope form is:

y-11=\frac{4}{3}\left(x-\left(-2\right)\right)

Part B)

The graph of the equation is attached below.

Step-by-step explanation:

Part A)

Given

  • The point = (-2, 11)
  • m = 4/3

The point-slope form of the line equation is

y-y_1=m\left(x-x_1\right)

Here, m is the slope and (x₁, y₁) is the point

substituting the values m = 4/3 and the point (-2, 11)  in the point-slope form of the line equation

y-y_1=m\left(x-x_1\right)

y-11=\frac{4}{3}\left(x-\left(-2\right)\right)

Thus, the equation in the point-slope form is:

y-11=\frac{4}{3}\left(x-\left(-2\right)\right)

Part B)

As we have determined the point-slope form which passes through the point (-2, 11) and has a slope m = 4/3

The graph of the equation is attached below.

5 0
3 years ago
Other questions:
  • What is the y intercept of -16t&lt;2+150
    12·2 answers
  • Your doctor prescribes you to take 400 milligrams of medicine every 8 hours. How many ounces of medicine do you take in a day?
    14·2 answers
  • Julie bought some shirts for six each the mark Marge bought some shirts for eight dollars each the girls spend the same amount o
    15·1 answer
  • Determine the circumference of a circle with a radius of 4 units.
    8·1 answer
  • What is the elapsed time between 3:40 AM and 2 PM?
    9·1 answer
  • The tenth car traveling on this road breaks down and its being pushed by its owners
    10·1 answer
  • What is the average rate of change for the function f(x)=3(0.25)^x over the interval -2 ≤ x ≤ 0
    11·1 answer
  • The volume of a cylinder is 81 cm3 if the radius is 3 cm what is the height of the cylinder
    9·1 answer
  • Solve for x. Each figure is a parallelogram
    13·1 answer
  • The base angles of an isosceles trapezoid are__________?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!