Answer:
Step-by-step explanation:
If you had a solid cylinder, in order to find the amount of material that makes up that solid cylinder, you would find the volume using the radius of 4 (half of the diameter 8). BUT we want to know the volume of the solid with the radius of 4 minus the solid that has a radius of 2.5 (half of the diameter 5).
That's volume outer - volume inner. To find the outer volume:
so
and
and do the same for the inner volume:
and

Subtract the inner from the outer:

If you need your answer in decimal form, then the volume is
9189.16 cm³
Answer:
403.33 kilometros
Step-by-step explanation:
De la pregunta anterior:
6 litros = 110 kilómetros
22 litros = x
Cruz multiplicar
6 litros × x = 22 litros × 110 kilómetros
x = 22 litros × 110 kilómetros / 6 litros
x = 403.33 kilometros
Así, 22 litros recorrerán 403.33 kilómetros