Answer:
Doug and Ken are driving at the same rate but they are coming from different places, with different distances. Since Doug takes t minutes and he is traveling 5 miles, his equation will be t=5x with x being the rate. Since Ken takes m minutes and he is traveling 7 miles, his equation will be m=7x with x being the rate. The equation that represents their travel would be 7/m = 5/t = x.