cylindrical can it was 2/3 empty. which expression can Janet used to calculate the approximate volume of the remaining coffe

Question

5 by 8

 

Answer 1

Hello Victoria

 

The equation to solve for the volume of a cylinder is 

 

V = πr²h (if radius is given)  OR  V = πD²h / 4  (if diameter is given)  

 

You haven't stated the units for the diameter and the height, so I will use inches (in) as an example.  You can substitute the units in the answer below if known.  I will also use the value of pi as 3.14.

 

V = πD²h / 4

 

    = (3.14 x (5 in)² x 8 in) / 4 = 157 in³

 

Since the can is 2/3 empty, it means that it is 1/3 full.  Therefore, the volume of the remaining coffee in the can is

 

V = 1/3 x (157 in³) = 52.3 in³