A talk-radio station airs commercials during any time not used for discussions with callers. Commercial time on the station costs $750.00 per minute. Write a variable expression for the amount of money the station can make on commercials in one hour, based on the number of minutes in the house used for discussions.
Make sure to tell what the variable represents.
I need help on this one, i have a lot of trouble on making expressions.
Whatever time during the hour that is spent on discussion does not earn money. Thus we have to consider time during the hour other than discussion.
Earnings/hour = (60 - disc. minutes)$750
I hope this helps. Thanks for asking.
To solve this problem, let's start by defining a variable. Let's say the variable represents the number of minutes in the hour that are used for discussions with callers.
Let's call this variable "D."
Now, we can calculate the number of minutes in the hour that are not used for discussions by subtracting the variable "D" from 60 (since there are 60 minutes in an hour).
The number of minutes not used for discussions can be represented as (60 - D).
Next, we need to find the amount of money the station can make on commercials in one minute, which is given as $750.00.
To find the amount of money the station can make on commercials in one hour, we can multiply the amount of money per minute ($750.00) by the number of minutes not used for discussions (60 - D).
Therefore, the variable expression for the amount of money the station can make on commercials in one hour is:
Amount of money = $750.00 * (60 - D)
In this expression, the variable "D" represents the number of minutes in the hour used for discussions with callers.