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
IRINA_888 [86]
3 years ago
8

A store charges their customers based on the number of items that they buy. Jane bought four items and was charged $15 and Georg

e bought twelve items and was charged $39. Write a function to model the cost based on the number of items you buy. Then determine how much you are charged if you purchase 22 items.
Mathematics
2 answers:
devlian [24]3 years ago
6 0
Use a rational expression to determine that F(x)= 3x+3=33 
By taking the +3 and moving it over to the other side, it would give you a negative 3, so 33-3= 30 and 3 multiplied by x equals 30. Our answer would be x=10
Verdich [7]3 years ago
6 0

Answer:

The function is y=3x+3

She would be charged $69 dollars for 22 items.

Step-by-step explanation:

We are given that,

Jane was charged $15 for buying 4 items.

Jane was charged $39 for buying 12 items.

Since, we have,

15 = 3 × 4 + 3

39 = 3 × 12 + 3

So, the function modeled for this situation will be,

Let, y = amount of money charged in dollars and x = number of items bought.

Then, the function is y=3x+3.

Further, when she purchases 22 items, the cost would be,

y=3\times 22+3 implies y=66+3 i.e. y= 69 (dollars)

Hence, she would be charged $69 dollars for 22 items.

You might be interested in
Please check these please
antoniya [11.8K]

-5x=60

The first thing we want to do is to divide -5 on both sides. We do this because -5x, is the same as -5 times x and we want to do the inverse of that.

After we divide on both sides, we get    x=60/-5

We know that 60 divided by -5 is -12.

Therefore our answer is:      x=-12

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

5= n + 2

We always want to get the variable to be alone, so if we subtract by 5 we would be doing the opposite of getting the variable alone. Although, if we subtract by 2 on both sides, we would get the variable alone and the answer would be 3=n

Therefore our answer is:       False

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

2(x-7)

By looking at this question, we see x being subtracted by 7. Then we see that 2 is being multiplied to that.

Therefore our answer is:        C

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

The product of a number and 4 increased by 8

In these types of questions, it's smart to break it up. We will start with the product of a number and 4. We know that a number is a variable and if we look at the multiple choice answers we can see that the variable they chose to use is n. We also know that a product is when numbers get multiplied. So that means 4 and n get multiplied which turns into 4n.

For the other part of the problem, we know that increased by 8 means added my 8. Now that we got our answers, we put then together.


Therefore our answer is:       A    4n+8

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

Pls give a like if this helped you!!!

4 0
2 years ago
Read 2 more answers
A box has dimensions of 17 inches long 1.3 feet wide and 8 inches high what is the volume of the box the formula of the volumes
nataly862011 [7]
The box is about 2121.6 inches cubed
8 0
3 years ago
Which of the following is closest to 27.8 × 9.6? A. 280 B. 300 C. 2,800 D. 3,000
Alisiya [41]
27.8 × 9.6 is equal to <span>266.88</span><span>
So, the closest would be A. 280.</span>
3 0
3 years ago
Read 2 more answers
Ricardo weigh 2pounds
IrinaVladis [17]

Answer:

I think that you are missing parts of your question as it is just a statement

Step-by-step explanation:

7 0
3 years ago
The graphs below have the same shape. What is the equation of the blue
frutty [35]
Using a graph tool
see the attache figure

the answer is the option B
g(x)=(x-5)²

4 0
3 years ago
Read 2 more answers
Other questions:
  • 3(q + 4/3) = 2<br><br> Solve for q
    11·2 answers
  • Ryan scores 200 points more than twice what joseph scores in a video game. if ryan scores 1600 points, how many points does jose
    12·1 answer
  • Which of these describes the transformation of the triangle
    15·1 answer
  • Math questions, pls help me and ill reward &lt;3 : )
    14·1 answer
  • Help me solve:<br> 3.14•8^2•23<br> And round to nearest tenth if necessary
    8·1 answer
  • a store is offering a 20% discount on all sales over $50 if you purchase a shirt and a pair of jeans for $62.50, what is the amo
    6·2 answers
  • I will mark brainest if it is correct<br> 1. 4x + 3 = x + 18<br> x=
    14·2 answers
  • Need help urgently please
    8·1 answer
  • I need a little bit of assistance with question 2
    8·1 answer
  • Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!