word problem

Question

molly's basic cell phone charges $35.99 for service plus $0.21 per minute beyong the included 250 minutes in the plan. how much will it cost Molly if she used her cell phone for 480 minutes in one month?

Answer 1

The most important thing is to break down the charges 

 

Step 1

 

Amount  Molly  pays for the service charge = $35.99

 

Step 2

 

 No of minutes that weren't included in the plan = 480 -250 = 230

 

 

Charges incurred for going beyond the minutes included in her plan = (480 - 250 ) *0.21

 

= $48.30

 

 

 

Total Molly spent on her cell phone charges = $35.99 + $48.30

 

= $84.29

 

 

Answer 2

Hi DeAndra, let TC represent the cost of one month phone bill, which included 230 minutes over the basic service.

 

The total cost is: 

 

TC = 35.99 + .21 * 230

 

TC = 35.99 + 48.30

 

TC = 84.29

 

Molly's phone bill for the month is: $84.29.

 

Questions?