coollid876
07.10.2019 •
Mathematics
What’s the average speed in km/h of a boat that moves 15 km across a lake in 45 min?
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Ответ:
20 km/hr
Step-by-step explanation:
Hey
Distance= 15km
Time= 45min
Since the unit for time is hours, we will convert 45 minutes to hours
45/60 = 0.75 hours
Speed= d/t
= 15/0.75
= 1500/75
= 20 km/h
Hope this helps
Ответ:
I think it would be 19 since 75-57 is 18 and 36-35 is 1 I added those two numbers and got 19