Answer:
48
Step-by-step explanation:
A square has 4 sides of equal length. 12 x 4=48
1km = 1000m
1hr = 3600sec
Do proportions:
1km / 1000m = 15km / x
15000m = x
1hr = 3600sec
15000/3600 = 4.2m per second
Choice 4
Answer:
Its A dude
Step-by-step explanation:
16
x * 3 = 48
so divide 48 by 3
which is 16 so x = 16
Nina's rate is 12.7 mph and Sophia's rate is 10 mph. Therefore, Nina is faster.