Question

Your cell phone plan is basic and costs $45 each month. You also must pay $0.10 per minute for long distance calls. How much would your month bill be if you had 45 long distance minutes? *

Answer 1

Given:

Basic cost = $45

Cost of long distance calls = $0.10 per minute

To find:

The total cost if you had 45 long distance minutes.

Solution:

Let the total cost be y for x minutes long distance calls.

Cost of long distance calls for one minute = $0.10

Cost of long distance calls for x minute = $0.10x

Total cost = Basic cost + Cost of long distance calls for x minute

`y=45+0.10x`

Substitute x=45, to find the total cost if you had 45 long distance minutes.

`y=45+0.10(45)`

`y=45+4.5`

`y=49.5`

Therefore, the total cost if you had 45 long distance minutes is $49.5.