Question

distance, rate, and time
katie is determining the time it will take to travel 405 miles by train. the train travels 90 miles per hour.

Explanation:

Step1: Recall the formula

The formula for time is $t=\frac{d}{r}$, where $d$ is distance and $r$ is rate.

Step2: Substitute values

Here, $d = 405$ miles and $r=90$ miles per hour. So $t=\frac{405}{90}$.

Step3: Calculate the result

$\frac{405}{90}=4.5$ hours.

Answer:

4.5 hours