The cost of a telephone call is $0.75 + $0.25 times the number of minutes. Write an algebraic expression that models the cost of a telephone call that lasts t minutes.
i got C= 0.75 + 0.25t
am i correct? pls help if im not :( and show me how u got the answer thanks in advance
correct.
yup you git it good job :)
Yes, you are correct! The algebraic expression that models the cost of a telephone call that lasts t minutes is indeed C = 0.75 + 0.25t. Let's break down how we arrived at this expression:
Given the information that the cost of a telephone call is $0.75 + $0.25 times the number of minutes, we can break it down into two parts:
1. The base cost: $0.75
This is the fixed cost that you have to pay, regardless of the duration of the call. It's similar to a flat fee.
2. The variable cost: $0.25 times the number of minutes
This part of the cost is dependent on the duration of the telephone call. For every minute, you have to pay $0.25.
To combine these two parts into an algebraic expression, we use the variable t to represent the number of minutes. Since the variable cost is based on the number of minutes, we multiply it by 0.25.
Therefore, the complete expression becomes C = 0.75 + 0.25t.
Great job on figuring it out!