Answer: Santa's speed in still air is 6 miles per minute
Speed of the wind is 1 mile per minute
Step-by-step explanation:
Let x represent the speed of Santa in still air. It is assumed that in still air. She is flying with the wind. If the speed of the wind is y, then him total speed is x + y
It takes Santa 5 minutes to fly 35 miles with the wind.
Speed = distance / time
It means that
x + y = 35/5 = 7
It takes him 7 minutes to fly 35 miles against the wind. This means that his total speed will be x - y
Speed = distance/time. Therefore,
x - y = 35 /5 = 5 - - - - - - 1
Substituting x = 7 - y into equation 1, it becomes
7 - y - y = 5
-2y = 5 - 7 = -2
y = -2/-2 = 1
x = 7 - y = 7 - 1
x = 6
4= 4.0
7/8= <span>0.875
Hope this helped!
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Answer:
Area of the sector = 47.52π
Step-by-step explanation:
Area of the sector of the circle;
A = ∅ / 360 * πr²
We know that;
∅ = 120
r = 12
So now we can substitute;
A = (120 / 360) * π(12)²
A = 0.33 * 144π
A = 47.52π
Hope this helps!
The best and most correct answer among the choices provided by the first question is the first choice or letter A.
The expression above is an example of a numerical expression.
I hope my answer has come to your help. God bless and have a nice day ahead!
Answer:
Step-by-step explanation:
We are given that
Height of tank,h=6 m
Diameter of top,d=4 m
Radius,r=
We have to find rate at which water is being pumped into the tank.
Volume of conical ,V=
h=2 m=200 cm
1m=100 cm
