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mahagonylyric
31.05.2020 •
Mathematics
The volume of a cylinder is 40 ft which expression represents the volume of O.C. one with the same base and height as the cylinder
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Ответ:
The volume of a cylinder is 40 ft which expression represents the volume of a Cone with the same base and height as the cylinder?
3(40) ft³
3(1/40) ft³
1/3(40)ft³
1/3(40²) ft³
The expression that represents the volume of a cone is
(40) ft³
Step-by-step explanation:
To find the expression that represents the volume of a cone with the same height and base as the cylinder, we will follow the steps below:
First write down the formula for calculating volume of a cone and volume of a cylinder
volume of a cone =
πr²h
volume of a cylinder = πr²h
If the base are the same, this implies they have the same radius, and from the question, it states that they have the same height, hence;
volume of a cone =
(volume of a cylinder)
from the question, the volume of the cylinder is 40 ft³
volume of a cone =
(volume of a cylinder)
=
(40) ft³
volume of a cone =
(40) ft³
Therefore the expression that represents the volume of a cone is
(40) ft³
Ответ:
56 Machines
Step-by-step explanation:
To solve this problem we need to use the rules of ratio and proportion.
We have:
84 Machines : 32 Days
x : 21 Days
Let x = number of machines required
84:32 can also be![\dfrac{84}{32}](/tpl/images/0492/8138/ab214.png)
x : 21 can also be![\dfrac{x}{21}](/tpl/images/0492/8138/10173.png)
Now we can solve for x by first cross multiplying.
32x = (84)(21)
32x = 1764
Now to find for x, we have to divide both sides by 32
x = 55.125
Now since we cannot have 1/8th of a machine we round up to 56.
We need 56 machines to produce the same number of articles in 21 days.