Final answer:
To evaluate 40 - 15 for t = 5, identify the variable t, substitute 5 into the expression, calculate 15 × 5, and then subtract that from 40 to get –35.
Step-by-step explanation:
To evaluate 40 – 15 when t = 5, we need to understand that this is a simple substitution problem in mathematics. You are replacing the variable t with the number 5 to evaluate the expression. The correct steps are as follows:
- Identify the variable in the expression, which is t.
- Substitute the value of the variable with 5 into the expression, so it becomes 40 – (15 × 5).
- Perform the multiplication: 15 × 5 = 75.
- Subtract the result from 40: 40 – 75 = –35.
The evaluated expression is –35.