SOLUTION: Thaddeus and Ian start at the same location and drive in opposite directions, but leave at different times. When they are 685 miles apart, their combined travel time is 13 hours. I

Question 863730: Thaddeus and Ian start at the same location and drive in opposite directions, but leave at different times. When they are 685 miles apart, their combined travel time is 13 hours. If Thaddeus drives at a rate of 50 miles per hour and Ian drives at a rate of 55 miles per hour, how long had each been driving?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
a+b=685,
s+n=13,
50s+55n=685,
50s=a,
55n=b
a = 300, b = 385, Ian n = 7 hours, Thaddeus s = 6 hours

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