Question

Recycled cds, incorporated, offers a choice of 5 used cds for 20$, with each additional cd costing 3$. Write a function for purchasing 5 or more cds. What will the cost of buying 12 cds be? Let x represent the number of cds over 5

Answer 1

It would cost $41

Explanation:

Formula;

20 + 3x

We need to find the number of CDs over 5;

12 - 5 = 7

The cost of 5 CDs is 20 + $3 for every remaining CD.

20 + 3(7)

20 + 21 = 41

Therefore, It would cost $41

Best of luck,

`Echy`

Answer 2

The formula is:

`20 + 3x`
You need to find the number of CDs over 5.

`12 - 5 = 7`
The cost or 5 CDs is 20 plus $3 for each remaining CD

`20 + 3(7)`

`20 + 21 = 41`
It would cost $41