Final answer:
The question requires calculating the speed by using the unit rate formula of distance divided by time. The speed is approximately 6.90 meters per second for traveling 400 meters in 58 seconds.
Step-by-step explanation:
The question "400 meters in 58 seconds. Your answer: _____ Applying Unit Rates" relates to the calculation of speed, which is a mathematical concept in physics. Speed is a scalar quantity that refers to how fast an object is moving. It can be calculated by dividing the distance traveled by the time it took to travel that distance, thus speed = distance/time.
In this case, to find the speed in meters per second (m/s), we would divide 400 meters by 58 seconds:
Speed = 400 meters / 58 seconds ≈ 6.90 m/s (rounded to two decimal places)
Therefore, the answer representing the speed is approximately 6.90 m/s.