Write a real world situation that can be represented by the expression 8(t - 3). Tell what the variable represents then give a value for t and evaluate the expression.
How about the time it takes Joe to complete some task.
He takes more time that Steve.
8 times
3 minutes less than ..
can you do the problem now?
A real-world situation that can be represented by the expression 8(t - 3) is the cost of buying 8 items, where t represents the price per item and t - 3 represents a discount of 3 units per item.
Let's say the value for t is $10.
To evaluate the expression, we substitute t = $10 into the expression:
8(t - 3) = 8(10 - 3) = 8(7) = 56.
Therefore, the expression evaluates to 56, indicating that the cost of buying 8 items with a price of $10 each and a discount of $3 per item is $56.
Sure! Let's say you are planning a road trip. The expression 8(t - 3) can represent the total distance, in miles, you traveled on the trip. In this case, the variable "t" represents the time, in hours, you have been driving.
Now, let's choose a specific value for t. Let's say you have been driving for 5 hours. We can substitute t = 5 into the expression and evaluate it:
8(5 - 3) = 8(2) = 16
Therefore, if you have been driving for 5 hours, the expression 8(t - 3) gives you a total distance of 16 miles.