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
Which of the following would produce valid inferences when sampling a population?
Pachacha [2.7K]

Answer:B

Step-by-step explanation:

5 0
3 years ago
Betty took a doll she inherited from her grandmother to the antique store. The dolls original price tag says $6.80. The antique
mariarad [96]
There was a 12.35% increase in the price.
5 0
3 years ago
Dived these numbers in scientific notation.<br><br> (9.6*10^-8)/(3*10^-7)
Wittaler [7]

Answer:50212.5

Step-by-step explanation:

8 0
2 years ago
3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.
tatyana61 [14]
Ok so from experience on this site
3x2=3x^2
people don't know how to put exponents
3x^2-y^3-y^3-z
simplify first

3x^2-2y^3-z

x=3
y=-2
z=-5
3(3^2)-2(-2)^3-(-5)
3(9)-2(-8)+5
27+16+5
48
8 0
3 years ago
Math: Slope help please
pishuonlain [190]
Slope = (2+5)/(-3-1) = 7/-4 = -7/4

answer is B -7/4
3 0
2 years ago
Read 2 more answers
Other questions:
  • Shayla has 5 pets which is 3 more than half the number of pets Judy has. how many pets does Judy have
    11·2 answers
  • (8 x 3,000) + (8x200) +(8x9)
    6·2 answers
  • Use the discriminant to determine the number of solutions for the quadratic equation.
    13·1 answer
  • 4/5/10/11/16/18/19/35 percent difference
    13·1 answer
  • What is the value of a in the question a/35 +20= 18
    13·1 answer
  • Which property is used to simplify 45and + 3 (25x+75Y) to 5y + 65x?
    5·1 answer
  • Help me!! Will mark brainliest!!!
    11·1 answer
  • Here I will be giving a Brainiest to a good answer :D
    15·2 answers
  • ( x - 7 )/ ( x - 2 ) = 5/4 , Therefore x = -------------
    10·1 answer
  • The product of two consecutive numbers is 4 more than three times the larger. find the integer​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!