Question

a person is walking at a rate of 9 feet every 4 seconds. what is their speed? (the unit rate of the distance they traveled per second).

Explanation:

Step1: Recall speed formula

Speed = $\frac{\text{Distance}}{\text{Time}}$

Step2: Identify values

Distance = 9 feet, Time = 4 seconds

Step3: Calculate speed

Speed = $\frac{9}{4}= 2.25$ feet per second

Answer:

2.25 feet per second