SOLUTION: Hi Guys you do a great job. I am hoping you can help my son. The formula for the volume of a cylinder is, were V is the subject V = pier2h. Change the subject of the equation t

Algebra ->  Equations -> SOLUTION: Hi Guys you do a great job. I am hoping you can help my son. The formula for the volume of a cylinder is, were V is the subject V = pier2h. Change the subject of the equation t      Log On


   

Question 506484: Hi Guys you do a great job. I am hoping you can help my son.
The formula for the volume of a cylinder is, were V is the subject V = pier2h.
Change the subject of the equation to the height(h). If the volume(V) is 20m3, and radius(r) is 2m what is the height(h)?
Hoping you can help. Cheers
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
The formula for the volume of a cylinder is, were V is the subject V = pier2h.
Change the subject of the equation to the height(h).
:
The formula for the volume of a cylinder
pi%2Ar%5E2%2Ah = V
Make the subject h, divide both sides by pi%2Ar%5E2
h = V%2F%28%28pi%2Ar%5E2%29%29
:
If the volume(V) is 20m3, and radius(r) is 2m what is the height(h)?
h = 20%2F%28%28pi%2A2%5E2%29%29
h = 20%2F%28%28pi%2A4%29%29
Cancel the 4 into 20
h = 5%2F%28pi%29
Use a calc and get
h = 1.59155 m is the height
:
:
:
Confirm this
pi%2A2%5E2%2A1.59155 = 20.000