Question

It took the race car 22 minutes to travel 114.4 kilometers. At what rate did the car travel? Use the formula r = StartFraction d Over t EndFraction, where r is the rate, d is the distance, and t is the time. Round your answer to the nearest tenth. 0.2 kilometers per minute 5.2 kilometers per minute 92.4 kilometers per minute 2,516.8 kilometers per minute

Answer 1

B

Explanation:

Answer 2

`5.2\ \text{km/min}`

Explanation:

Rate of travel or speed is given by

`r=(d)/(t)`

where

d = Distance traveled

t = Time taken to travel the distance

Here

d = 114.4 km

t = 22 minutes

So,

`r=(d)/(t)=(114.4)/(22)`

`\Rightarrow r=(57.2)/(11)`

`\Rightarrow r=5.2\ \text{km/min}`

The rate at which the car traveled is
`5.2\ \text{km/min}`.