Two buses going in opposite directions, one at 55mph, the other a 48mph. That means in 1 hr, the first bus would have traveled 55 mi and the second will have traveled 48 mi. 55+48=103mi apart. We can use this to set up our equation, with x being the number of miles traveled: 55x+48x=619
55x+48x=619
103x=619
x=6
6 miles is your answer.
