Final answer:
To determine the number of trial runs, divide the track length by the length of each trial run. If each trial run is 96 centimeters long, the correct answer is D) 5 trial runs.
Step-by-step explanation:
In order to determine the number of trial runs Sadi and Nahlya have conducted for each car, we need to divide the total length of the track by the length of each trial run. The track is 480 centimeters long. Therefore, we divide 480 by the length of each trial run.
The possible answers are:
- 2 trial runs - If each trial run is 240 centimeters long.
- 3 trial runs - If each trial run is 160 centimeters long.
- 4 trial runs - If each trial run is 120 centimeters long.
- 5 trial runs - If each trial run is 96 centimeters long.
Therefore, the correct answer is D) 5 trial runs if each trial run is 96 centimeters long.