Answer:
2.5 hours
Step-by-step explanation:
To get the hourly speed, we need to divide 430 by 5.
This means that the train is going at a speed of 86 miles/hour.
Since we need to find the hour, we need to divide 215 miles by 86 miles/hour.
[tex]215 miles / \frac{86 miles}{hour}[/tex]
We can use the keep change flip to do [tex]215 miles * \frac{1 hour}{86 miles}[/tex]
This would give us 2.5 hours.
