animelover730
23.04.2020 •
Mathematics
A nurse worked a total of 9/4 hours of overtime at $32 what's her overtime earnings?
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Ответ:
I believe it is $32, because it says she worked 9/4 hours for $32. I apologize if this is incorrect.
Step-by-step explanation:
Ответ:
Speed= 60 km/h
Distance to the nearby town= 105 km
Step-by-step explanation:
Given: Wind speed= 15 km/h
Time taken while going = 2 h 20 minutes.
Time taken while returning = 1 h 24 minutes
First we will get the time in uniform unit of hours,
we will convert minutes in hours for to get
∴
Similarly for
∴
Now, lets take Plane´s speed as a and distance as d.
While going to the nearby town it is headwind,
∴
While returning it is tailwind
∴
Next, we will use the formula,
As distance remain same:
⇒
Now, divide both side by 7
⇒
cross multiplying both side
⇒
∴
Speed of plane is 60 km/h
Now substituting the value of a in either of equation to get distance.
∴ d=
105 km is the distance to the nearby town.