Question

A package of pencils cost $6.25 per set at an office supply store. Which equation can be used to determine the price, P, of n sets of these pencils? n = 6.25P P = 6.25n n equals 6.25 over P P equals 6.25 over n

Answer 1

To solve, it would be 6.25n. That eliminates both 6n25 over P, P equals 6.25 over n, and n=6.25P, leaving P=6.25n as the answer.

Answer 2

P = 6.25n

Explanation:

The problem says that each set costs $6.25, and n refers to sets of pencils.

So, we know that "per" refers to multiplication, because if each set of pencil costs $6.25, then a n quantity of pencils will be the sum of $6.25 n times, which is the definition of multiplication. So, the equation that correctly determined the price is:

`P=6.25n`

The price is $6.25 per set of pencils, that is what this equation says.

Therefore, the right answer is the second one.