Question

ATT has an internet promo. To start their service, you will need to pay a $10 equipment fee per month, and then it is $55 a month for access to the internet. Write an Explicit rule that models this situation. ​

Answer 1

The explicit rule to model the AT&T internet promo situation is C = 65n, where C is the total cost after n months, with the cost comprising a monthly equipment fee of $10 and a monthly access fee of $55.

Step-by-step explanation:

To write an explicit rule that models the AT&T internet promo situation, we need to create an equation that reflects the total monthly internet service cost considering both the equipment fee and the access fee. Let's define C as the total cost after n months of service. The situation can be described by the equation:

C = 10n + 55n

Here, the term 10n represents the equipment fee of $10 charged every month while the term 55n represents the monthly access fee for the internet service. Together, the rule for the total cost after n months is:

C = 65n

Therefore, if a customer subscribes to the service for one month (n=1), the total cost would be C = 65(1) = $65. This total includes both the equipment fee and the monthly access fee.