Question

For her phone service, Melissa pays a monthly fee of $19, and she pays an additional $0.06 per minute of use. The least she has been charged in a month is $105.70. What are the possible numbers of minutes she has used her phone in a month? Use m for the number of minutes, and solve your inequality for m.

Answer 1

1,445 m

Step-by-step explanation:

This is based on fixed cost and variable cost

Fixed cost is fixed monthly = $19 per month

Additional = $0.06 per minute

If total paid = $105.70

Variable = $105.70 - $19 = $86.70

Minutes =
`(86.70)/(0.06) = 1,445`

1,445 m

Which means a total of 24.083 hours, but since it charges on per minute basis and thus the cost will be depicted for 1,445 minutes.

1,445 m