Final answer:
To find the value of |15 – 2n| for n = 20, substitute n into the equation and calculate: |15 - 2*20| = |-25|, which equals 25.
Step-by-step explanation:
The question presents the task of finding the value of |15 – 2n| for n = 20. To solve this, we need to substitute the value of n into the equation and then calculate the absolute value.
- First, substitute n = 20 into the equation: |15 – 2 × 20|.
- Calculate the expression inside the absolute value: 15 - 40 = -25.
- Take the absolute value of the result: |-25| = 25.
Therefore, the absolute value of |15 – 2n| when n = 20 is 25.