Question

An Internet service provider charges $9.95/month for the first 20 hours and $0.50 for each additional hour. Write an expression representing the charges for h hours of use in one month when h is more than 20 hours. What is the charge for 35 hours?

Answer 1

I= 9.95 + .5h

20-35=15
I = 9.95+.5(15)
9.95+7.5
I = 17.45

If you used the internet for 35 hours, your bill would be $17.45

Answer 2

The expression is :
`9.95 +0.50(h-20)`

Explanation:

The expression representing the charges for h hours of use in one month when h is more than 20 hours is :

`9.95 +0.50(h-20)`

When h = 35 hours:

`9.95 +0.50(35-20)`

=>
`9.95 +0.50(15)`

=>
`9.95 +7.5`

= $17.45