maria drives to school in 20 minutes. she drives home in 24 minutes. what was her average driving speed in terms of d, the distance from her home to school?

Question

d=vt

d= distance

v=Speed

t=time

Answer 1

The distance from Maria's home to school is d.

The distance covered by Maria when she drove to school and then back home is then D = d + d = 2d

Total time taken by Maria to cover this distance is t = 20 minutes + 24 minutes = 44 minutes

Average speed is given as

v = D/t

v = (2d)/(44 minutes)

v = d/22 units/minutes

Therefore, Maria's average speed is d/22 units/min.

Answer 2

Total distance driven = 2d

Total elapsed time = 44 min

Average speed = 2d/44 = d/22 miles per minute