Question

15. The distance a car travels can be found using the formula d= r.t, where d is distance, r is the rate of speed, and t is time. If the car has traveled 120 miles in 3 hours, what is the average rate of speed?

A. 30 miles per hour

B. 40 miles per hour

C. 60 miles per hour

D. 360 miles per hour

Answer 1

Answer:

40 miles per hour

Step-by-step explanation:

1. Speed = Distance / Time
2. Speed = 120 / 3
3. Speed = 40 miles per hour

Answer 2

Answer:

Option B. 40 miles per hour

Step-by-step explanation:

Distance = rate of speed ×  time

If Distance = 120 miles and time = 3 hours

we will have

120 = r × 3

120 = 3r

Divide both sides by 3 and we will have

3r/3 = 120/3

r = 40