Answer:
14minutes
Step-by-step explanation:
first you need to find the distance which you must find the perimeter P=100+80+100+80
=360 so you multiple it by 6 to get
=2160meters
so you need to convert the meters to kilometers
which is 1000m =1km
what about 2160m you cross multiply
to get 2.16km.
so the distance represent D=2.16 km
and speed represent S=9km
now you need to find time represented by T
T=D/S
T=2.16km/9km/h
so the km cancels each other
you get 0.24h for this isn't the solution
you know that 1 hour= 60 minutes
what about 0.24h you cross multiply
to get 14.4 so you round it off to get 14 minutes
