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.
나디아의 경우에는, 나디아는 x거리만큼 움직였어요. x는 나디아가 걸을 때의 속력, 그러니까 시속 3. 5마일이죠, 그 속력에 나디아가 움직이는데 걸린 t시간을 곱해준 것이에요.QED QED