Final answer:
To find the average speed of Cartriona LeMay Doan in the 500-meter race, divide the distance traveled by the time taken. Her average speed was approximately 6.68 meters per second.
Step-by-step explanation:
To find the average speed of Cartriona LeMay Doan in the 500-meter race, we need to divide the distance traveled by the time it took her to complete the race. The distance traveled is 500 meters and the time taken is 74.75 seconds.
So, the average speed is 500 meters divided by 74.75 seconds:
Average speed = 500 meters / 74.75 seconds ≈ 6.68 meters per second (rounded to the nearest tenth).
Therefore, Cartriona LeMay Doan's average speed in the 500-meter race was approximately 6.68 meters per second.