Question

Telephone plan consist of a monthly fee of $20 plus $.20 per minute for long distance calls made write an equation for the total cost, C, when N minutes are used for long distance calls C =

Answer 1

`C=20+0.20N`

Explanation:

Fixed monthly fee = $20

Amount charged per minute for long distance calls = $0.20

`C` denotes total cost such that
`N` minutes are used for long distance calls.

Amount charged for
`N` minutes for long distance calls
`=0.20N`

Therefore, an equation for the total cost, C, when N minutes are used for long distance calls is
`C=20+0.20N`