Respuesta :
Answer:
see below
Step-by-step explanation:
Part A
d=rt
Divide each side by t
d/t = rt/t
d/t = r
Part B
d =800000 meters and t = 4 hours
800000 meters / 4 hours = rate
200000 meters / hour = rate
Part C
We know that 1000meters = 1 km
200000 meters / hours * 1 km/1000m = 200 km / hour
Part D
We should use km because km is used to measure long distances and 200000 meters is a long distance.
Answer:
Part A : r = d ÷ t
Part B : Rate = 200000 metres per hour
Part C : Rate = 200 kilometres per hour
Part D : Kilometres make more sense to use as the bird can cover long distances in short periods of time.
Step-by-step explanation:
Part A
d = r × t
→ Divide both sides by t
d ÷ t = r ∴ r = d ÷ t
Part B
→ State formula
Rate = Distance ÷ Time
→ Substitute in the values
Rate = 800000 ÷ 4
→ Simplify
Rate = 200000 metres per hour
Part C
→ Convert the distance into kilometres using 1000 m = 1 km
800000 metres = 800 km
→ State formula
Rate = Distance ÷ Time
→ Substitute in the values
Rate = 800 ÷ 4
→ Simplify
Rate = 200 kilometres per hour
Part D
Kilometres make more sense to use as the bird can cover long distances in short periods of time.