Posted by Confused. on .
A cylindrical container weighs 36 ounces. Another container made out of the same material is similar to the first container with a height that is threefourths the height of the first container. To the nearest tenth of an ounce, how much does the second container weigh?

Honors Geometry 
ally,
28.1 but im not sure.

Honors Geometry 
Confused.,
Well... i got this so far..
W1 = weight of first container = 36 ounces
W2 = weight of second container
Use the ratio of weights of similar solids to solve for the weight of the second container.
W2/W1 = t^3
W2/36 = (3/4)^3
W2/36 = 27/64
W2 = 36*27/64 = 15.1875
Rounded to the nearest 10th 15.2
The second cylindrical container weights 15.2 ounces.
Is that right? 
Honors Geometry 
Damon,
If they are really similar, multiplying by 27/64 as you did is correct. That assumes that the wall thickness as well as the radius and height are 3/4 of the original.

Honors Geometry 
Damon,
If they both had the same wall thickness (for example tin cans made out of the same sheets of metal) you would multiply by 9/16.
The reason I mention this is that they went out of their way to say that it was a container and not a solid cylinder. 
Honors Geometry 
yo,
hello people

Honors Geometry 
jurbal,
I forgot the paprika