distance = rate * time
405 miles = 90 miles/hour * time
divide each side by 90
405/90 = time
4.5 hours = time
Choice B
Answer:
Option B - 4.5 hour
Step-by-step explanation:
Given : Katie travel 405 miles by train. The train travels 90 miles per hour.
To find : Determining the time ?
Solution :
The distance covered by train is 405 miles.
The speed of the train is 90 miles per hour.
The time taken is given by,
[tex]\text{Time}=\frac{\text{Distance}}{\text{Speed}}[/tex]
[tex]\text{Time}=\frac{405}{90}[/tex]
[tex]\text{Time}=4.5[/tex]
The time taken by train is 4.5 hour.
Therefore, Option B is correct.
