Question 54079
Remember: Rate * Time = Distance
Beth's rate = r
Beth's time = 2
Beth's Distance = 2r
Marion's rate = r + 1
Marion's time = 2
Marion's Distance = 2r + 2
2r + 2r + 2 = 30
4r + 2 = 30
4r = 28
r = 7
Beth's rate was 7mi/hr.
Marion's rate was 8mi/hr.