Which equation represents the total price (p) paid when buying books (b) that cost $3.99 each? How much do 13 books cost?
2 answers:
Answer:
The answer is D. p = 3.99b; $51.87.
Step-by-step explanation:
In this case first we have to represent the equation and then find the total price of the books in order to find the correct answer. This is:
Total price = p
Number of books = b
Cost of each book = $3.99
This is a case of multiplication were we have to multiply the number of books by the cost of each one to find the total price, this is:
Having this we can calculate the total price of buying 13 books, this is:
The total price of buying 13 books at $3.99 is $51.87.
The answer is D. p = 3.99b; $51.87.
You might be interested in
To complete the table it is necessary to know the possibilities that the sergeant has to change or remain in an intersection. The probabilities (depending on the box) are:
- 0
- 0.2
- 0.25
- 0.33
<h3>How to calculate the probability of intersection change? </h3>
To know the probability of intersection change, it is necessary to locate the police officer at one of the intersections. Subsequently, count how many possibilities of change you have, for example: 3 possibilities and finally add the possibility of remaining in the intersection as shown below:
- Intersection 3 has 3 possibilities of changing towards intersections 2, 8 and 4. Additionally, it has the possibility of staying at intersection 3, that is, it has 4 possible decisions.
To know the probability we divide the number 1 (because it is only a decision that we have to make) and divide it by the number of possibilities (4).
- 1 ÷ 4 = 0.25
According to the image we can infer that in some intersections they only have 3, 4 and 5 possibilities, so the probability of change will be different as shown below:
- 1 ÷ 3 = 0.33
- 1 ÷ 4 = 0.25
- 1 ÷ 5 = 0.2
Learn more about probabilities in: brainly.com/question/8069952
