First we need to find Mia's speed (v) in km/min
v = distance travelled/ time
v = 3 km/20 minutes
v = 0.15 km /min
in order to convert the speed into mile/min, we need to use the conversion factor given in which for every kilometer, there is 0.6 miles.
v = 0.15 km/min *(0.6 miles/ km)
v =0.09 miles/min
therefore the speed in miles/min is 0.09 miles/min
Answer:
The answer is A.
Hope that helps :)
Step-by-step explanation:
Answer:
The answer is the second one
20*2=40
40*50=2000
2000/60=33.33
about 33 hours by lifting by hand
