Question

For his phone service, Jason pays a monthly fee of $19, and he pays an additional $0.05 per minute of use. The least he has been charged in a month is $75.10.

What are the possible numbers of minutes he has used his phone in a month?
Use m for the number of minutes, and solve your inequality for m.

Answer 1

The answer is 1,122 minutes per month.

Given:
monthly fee - $19
additional - $0.05 per minute
charged in a month - $75.10

Req:
number of minutes

Sol:
monthly fee + additional fee ≥ charged in a month
19 + 0.05m ≥ 75.10
0.05m ≥ 56.10
m ≥ 1,122 minutes per month

Jason used his phone service for 1,112 minutes in the span of one month