Question

A phone company charges a base fee of $16 per month and an additional charge per minute. The monthly phone calls can be represented by the equation C = 16+ am. which equation can be used to find the number of minutes customer used if we know A and C

Answer 1

m = (C - 16) / a

Explanation:

To find the number of minutes a customer used if we know A and C, we can rearrange the given equation C = 16 + am to solve for m.

Starting with C = 16 + am, we can subtract 16 from both sides to get:

C - 16 = am

Then, we can divide both sides by a to isolate m:

m = (C - 16) / a

Therefore, the equation that can be used to find the number of minutes a customer used if we know A and C is:

m = (C - 16) / a

Answer 2

The equation C = 16 + am represents the total cost of the phone calls, where C is the total cost, a is the additional charge per minute, and m is the number of minutes used. To find the number of minutes used, we can solve the equation for m.

m = (C - 16) / a

This equation can be derived as follows:

* Subtract 16 from both sides of the equation C = 16 + am to get C - 16 = am

* Divide both sides of the equation C - 16 = am by a to get (C - 16) / a = m

Therefore, the equation m = (C - 16) / a can be used to find the number of minutes a customer used if we know a and C.

For example, if the total cost of the phone calls is C = $32 and the additional charge per minute is a = $0.05, then the number of minutes used is m = (C - 16) / a = (32 - 16) / 0.05 = 40 minutes.