CPM Homework Help : MC2 Problem 8-6

If a train travels at an average rate of $40$ miles per hour, how long will it take the train to travel $11$ 0 miles? Be sure to show all of your work.

Help:

If a train traveled at $30$ miles per hour for $60$ miles, it would take $2$ hours based on the expression
$t= \frac{60}{30}$
Based on the expression above, how long would it take to travel $110$ miles at a rate of $40$ miles per hour?

Answer:

$2.75$ hours or about $2$ hours, $45$ minutes