A motorcycle leaves Colorado Springs traveling north at an average speed of 47 miles per hour. One hour later, a car leaves Colorado Springs traveling south at an average speed of 54 miles per hour. How long after the motor cycle leaves will it take until they are 552 miles apart?

Question

A motorcycle leaves Colorado Springs traveling north at an average speed of 47 miles per hour.  One hour later, a car leaves Colorado Springs traveling south at an average speed of 54 miles per hour.  How long after the motor cycle leaves will it take until they are 552 miles apart?