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Sagot :
the question asks for the speed in miles per hour, so first thing we have to do is convert 72 minutes into hours by dividing by 60: 1.2 hours.
speed = distance / time
speed = 54 miles / 1.2 hours
speed = 45 miles/hour aka miles per hour aka mph
speed = distance / time
speed = 54 miles / 1.2 hours
speed = 45 miles/hour aka miles per hour aka mph
x miles per hour means that x miles / 60 minutes
If they traveled 54 miles / 72 minutes, so:
72 minutes - 60 minutes = 12 minutes
[tex] \frac{12}{60} = 0,2[/tex]
60 minutes = 1
12 minutes = 0,2
1 + 0,2 = 1,2 hour
V = s/t
v - velocity or speed
s - linear distance traveled
t - time, so...
we must divide 54 miles by 1,2 hour = [tex]54:1,2= 45 [/tex]
Now, as we all know...
Their average speed was 45 miles per hour.
If they traveled 54 miles / 72 minutes, so:
72 minutes - 60 minutes = 12 minutes
[tex] \frac{12}{60} = 0,2[/tex]
60 minutes = 1
12 minutes = 0,2
1 + 0,2 = 1,2 hour
V = s/t
v - velocity or speed
s - linear distance traveled
t - time, so...
we must divide 54 miles by 1,2 hour = [tex]54:1,2= 45 [/tex]
Now, as we all know...
Their average speed was 45 miles per hour.
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