Question

Which equation represents the total price (p) paid when buying books (b) that cost $3.99 each? How much do 13 books cost?

A. b = 3.99p; $51.87
B. b = 3.99c, $51.87
C. p = 3.99b; $0.31
D. p = 3.99b; $51.87

Answer 1

Your answer is D p=3.99;$51.87

Explanation:

Answer 2

The answer is D. p = 3.99b; $51.87.

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:

`p=3.99*b`

Having this we can calculate the total price of buying 13 books, this is:

`p=3.99*13=51.87`

The total price of buying 13 books at $3.99 is $51.87.

The answer is D. p = 3.99b; $51.87.