나디아의 경우에는, 나디아는 x거리만큼 움직였어요. x는 나디아가 걸을 때의 속력, 그러니까 시속 3. 5마일이죠, 그 속력에 나디아가 움직이는데 걸린 t시간을 곱해준 것이에요.
So Nadia's equation, if we just remember that distance is equal to rate times time, we could use that for both of them, in Nadia's case, the distance she travels is x. x is going to be equal to her rate, which is 3. 5 miles per hour, times t, which is the time that she travels.QED QED