Answer:
a. 2/3 miles per minute
b. between 50 to 60 minutes with a speed of 3 miles per minute (circle that please)
c. because it took the shortest time to cover the longest distance.
Explanation:
a . Speed = Distance covered/ Time taken
= 20/30
= 2/3 miles per minute
b. we shall have to calculate the speed in the three parts to determine where it travels fastest
Speed = Distance covered/ Time taken
between 0 to 40 minutes
Speed = 30/40
= 3/4 miles per minute
between 50 to 60 minutes
Speed = 30/10
= 3 miles per minute
hence we can conclude that it travels fastest between 50 to 60 minutes with a speed of 3 miles per minute (circle that please)
C. because it took the shortest time to cover the longest distance.