CPM Homework Help : CCAA8 Problem 8-29

At 3:25 p.m., two trains left Kalamazoo, Michigan. One train traveled westward at a constant rate of $82$ miles per hour, while the other traveled eastward at a constant rate of $66$ miles per hour. If they are now $111$ miles apart, what time is it now? Write and solve an equation (or system of equations) to answer this question.

Hint 1:

Distance = (rate)(time)
Write a distance equation for each train.

Hint 2:

If the trains are $111$ miles apart, then their 'total distance' is $111$ . Use this to write an equation.

Partial answer:

$82t+66t=111$
Note: The solution to this equation is not the answer to the question asked in the problem.