Question

For his long distance phone service, bill pays a $7 monthly fee plus 7 cents per minute. Last month, bill’s long distance bill was $18.27. For how many minutes was bill billed?

Answer 1

161 minutes

Explanation:

$1827-$7=$11.27

$11.27/.07=161

Answer 2

161 minutes

Explanation:

Bill pays a monthly fee for his long distance phone service = $7.00

and call charges per minute = 7 cents

1 dollar = 100 cents

Therefore 7 cents =
`(7)/(100)` = $0.07

Last month, Bill's long distance bill was $18.27.

Let Bill used the phone service for x minutes

The equation for his uses in minutes :

7.00 +(0.07x) = 18.27

0.07x = 18.27 - 7.00

0.07x = 11.27

x =
`(11.27)/(0.07)`

x = 161 minutes

Bill was billed for 161 minutes.