Respuesta :
Answer:28 feet per second
Step-by-step explanation:
Given : The distance traveled by sprinter = 319 feet
The time taken by sprinter = 11 seconds
We know that the formula to calculate the unit rate of distance per time is given by :_
[tex]r=\dfrac{\text{Distance}}{\text{Time}}\\\\\Rightarrow\ r=\dfrac{319}{11}\\\\\Rightarrow\ r=29\text{ feet per second}[/tex]
Hence, the sprinters unit rate = 28 feet per second