Question

Nadya's cell phone provider charges a monthly fee of $35 for usage up to 200 minutes. If she uses more than this in a month, she is charged $0.23 for each additional minute. Let c represent the cost of Nadya's bill if she uses m minutes of air time. Write an expression that can be used to find c if she used more than 200 minutes last month.

Answer 1

c=35+0.23m

Explanation:

Given that Nadya's uses the service for up to 200 times then

let let c represent the cost of Nadya's bill

and m be the minutes of airtime

therefore

the initial charger is $35

The charge per additional minutes is $0.23

c=35+0.23m

Therefore the expression is

c=35+0.33m