Question

A car is traveling at a speed of 54 kilometers per hour. What is the car's speed in kilometers per minute? How many kilometers will the cartravel in 20 minutes? Do not round your answers.

Answer 1

If the car travel 54 kilometers per hour

To find the car's speed in kilometers per minute

we will first convert 1hour to minute

1 hour = 60 minute

Then

54/60 = 0.9 km per minute

The speed of the car is 0.9 kilometer per minute

The second part of the question

To find the number of kilometers travelled by the car in 20 minutes:

Let x be the number of kilometer travel by the car in 20 min

0.9 kilometer = 1 minute

X = 20 minute

cross-multiply

X = 20 x 0.9

X =18 kilometers

The car travels 18 kilo