Final answer:
The diver's average rate per second is calculated by dividing the total distance traveled by the total time. For a 20 feet distance covered in 5 seconds, the average rate is 4 feet per second.
Step-by-step explanation:
The question asks to calculate the average rate of speed at which a diver traveled. To find the average speed, you can use the formula:
Average Speed = Total Distance ÷ Total Time
Given that the diver traveled 20 feet in five seconds, you can plug these values into the formula:
Average Speed = 20 feet ÷ 5 seconds = 4 feet per second
This means that the diver's average rate per second is 4 feet. The term 'integer towels' seems to be a typo and is irrelevant in this context; the solution only requires basic arithmetic.