Answer:
The volume of the cylinder is 
cubic feet.
Step-by-step explanation:
From Geometry we remember that volumes of a cone and a cylinder with the same radius (
), measured in feet, and height (
), measured in feet, are defined by the following equations:
Cone
(1)
Cylinder
(2)
The ratio of the volume of the cylinder to the volume of the cone is:
(3)
If we know that 
, then the volume of the cylinder is:
The volume of the cylinder is cubic feet.
Substitute 21 for x.
y = 21 - 4 = 17
Answer:
https://www.caverna.k12.ky.us/userfiles/110/Classes/7142//userfiles/110/my%20files/study%20guide%20answer%20key%20(1).pdf?id=4059
Step-by-step explanation:
copy and past this pdf
4x=20
4/4x=20/4
x=5
u want to isolate the variable to solve these equations
