Question

A hotel's Internet service costs guests $3.00 for the first hour of use and $0.15 for each give minutes over that. A woman uses the service for 3 hours and 10 minutes. What will her Internet charge be?

$7.20
$9.30
$6.90
$5.60
$3.90

Answer 1

To calculate the total Internet charge for the hotel guest, the fixed cost for the first hour and the variable cost for the additional time were added. For 3 hours and 10 minutes of usage, the total cost is $6.90.

Step-by-step explanation:

The student's question is about calculating the total cost of Internet service at a hotel, where the pricing structure includes a fixed cost for the first hour and an additional variable cost for each subsequent unit of time. To solve this, we use basic arithmetic to first determine the fixed cost for the initial hour and then calculate the total cost for the additional time used.

For the first hour, the cost is $3.00. The woman uses the Internet for an additional 2 hours and 10 minutes beyond the first hour. We convert the additional usage time into 5-minute intervals: 2 hours and 10 minutes is 130 minutes, which is 26 periods of 5 minutes. The cost for each 5-minute interval is $0.15, so we multiply $0.15 by 26 to find the additional cost. Adding this to the initial $3.00 provides the total charge.

Therefore, the calculation would be $3.00 + (26 x $0.15) which equals $3.00 + $3.90, giving a total Internet charge of $6.90.