Question

The owner of the “CD Universe” website just bought 1000 CDs by the same musical artist. Each CD cost $6.45. CD Universe decides to sell them to its customers for $12.95 each. What formula could be used to calculate the profit/loss, p, for selling n CDs?

Answer 1

The total cost of 1000 CDs is: 6.45*1000=6450.
The revenue is the product of the number of CDs sold, n, and the selling price of each is 12.95.
P=12.95n-6450

Answer 2

The formula used to calculate profit 'p' will be :

`p=12.95n-6450`

Explanation:

Cost of 1 CD = $6.45

So, cost of 1000 CD's =
`6.45*1000=6450`

The selling price of 1 CD = $12.95

Let the profit be represented by 'p'

Selling price of 1 CD = $12.95

So, selling price of 'n' CD's = $12.95n

So, the formula used to calculate profit 'p' will be :

`p=12.95n-6450`