Dog's position= p
Distance = rate*time
Dog distance= 720T
The fox position= p+60
Distance= rate*time
d= 750t-60 (Subtract 60 since the fox is already ahead of the dog)
We want to know if their distances are the same. So set up an equation.
720t=750t-60
-750t -750t
-30t/-30= -60/-30
t=2(Time)
d= 720(2)= 1440
d= 750(2)-60= 1440