Answer:
Wind speed = 30 mph
Plane speed = 270 mph
Step-by-step explanation:
Given that :
Distance = 600 miles
Let speed of airplane = a ; speed of wind = b
Net speed ; with wind = a + b
Net speed against wind = a - b
Time taken with wind = 2 hours
Time taken against wind = 2.5 hours
Recall :
Speed = distance / time ; distance = speed * time
(a + b) * 2 = (a - b) * 2.5
2a + 2b = 600
a + b = 300 - - - (1)
a = 300 - b
2.5a - 2.5b = 600
a - b = 240 - - - (2)
300 - b - b = 240
300 - 2b = 240
-2b = - 60
b = 30
a = 300 - 30
a = 270
Wind speed = 30 mph
Plane speed = 270 mph
Answer:
15.71 metros cúbicos de aceite transportará el depósito del camión.
Step-by-step explanation:
Un camión transporta aceite de oliva en un deposito con forma de cilindro de 1 m de radio y 5 m de altura.
Para calcular la cantidad de aceite que transportará se debe calcular el volumen del depósito, siendo con forma de cilindro. El volumen de dicha figura es calculada como V=π*r²*h, donde r es el radio y h es la altura.
En este caso, el volumen del depósito cilíndrico es:
V=π*( 1 m)²*5 m
Resolviendo:
V=15,71 m³
<u><em>15.71 metros cúbicos de aceite transportará el depósito del camión.</em></u>
The length of the tangent from point D to point B can be calculated by adding the length of BC to the length of BD.
We are given that:
BC = 2 units
CD = 2 units
Therefore:
BD = BC + CD
BD = 2 + 2
BD = 4 units
