4 because that is what's multiplied throughout
Answer:
r=4
Step-by-step explanation:
To get the answer, all you have to do is 715 ÷ 55 which equals 13 (hours)
Given:
unit rate: 20km/h
Speed = distance / time
20kmh = 30km / time
time = 20kmh / 30km
time = 2/3 hrs or 40 minutes
2/3 hrs * 60mins/hr = (2*60)/3 = 120/3 = 40 minutes
Answer:
I don't know
Step-by-step explanation:
