Question

If a car travels 15 miles in 30 minutes, what is its average speed

Answer 1

Answer:

Hence, speed of car = 30 miles per hour.

Explanation:

Speed is expressed as Distance over Time

Here, given,

Distance = 15 miles

Time = 30 minutes

Hence,

speed of car = 15 miles (distance) / 30 minutes (time)

Which can be rewritten by multiplying both distance and time by 2 as:

Speed = (15 x 2) miles / (30 x 2) minutes

Speed = 30 miles / 60 minutes

Speed = 30 miles / 1 hour (1 hour has 60 minutes)

Hence, speed of car = 30 miles per hour.