SOLUTION: The volume of a cone varies jointly as the height of the cone and the square of the radius. If the radius is 8 centimeters and the height is 15 centimeters, the volume is 1005.3

Algebra ->  Rational-functions -> SOLUTION: The volume of a cone varies jointly as the height of the cone and the square of the radius. If the radius is 8 centimeters and the height is 15 centimeters, the volume is 1005.3       Log On


   

Question 613859: The volume of a cone varies jointly as the height of the cone and the square of the radius. If the radius is 8 centimeters and the height is 15 centimeters, the volume is 1005.3 cubic centimeters. Find the volume if the height is 21 centimeters and the radius is 6 centimeters.
I thought the answer was 1005.8 but I think I have done something wrong.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
1005.3 * (21/8) * (6/15)^2