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khenalilovespandas
07.04.2020 •
Mathematics
Ben also participated. He fell down midway, and had to walk part of the distance. Still, he finished the distance! It took him exactly 30 minutes though. a What was Ben’s average speed in miles per hour?
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Ответ:
0.56 m/s
Step-by-step explanation:
The average speed of a body tells how fast is the body moving; it is calculated as:
v=\frac{d}{t}v=td
where
d is the distance covered
t is the time elapsed
In this problem, we don't know the distance covered by Ben. Therefore, we will assume that it is 1 km:
d = 1 km = 1000 m
The time elapsed to cover this distance is:
t=30 min \cdot 60 =1800 st=30min⋅60=1800s
Therefore, Ben's average speed is:
v=\frac{1000}{1800}=0.56 m/sv=18001000=0.56m/s
Hope this helps
Ответ:
20!
Step-by-step explanation: