SOLUTION: Here is the question: The dimensions of a brick, in inches, are 2 by 4 by 8. How many such bricks are needed to have a total volume of exactly 1 cubic foot? I know that to fin

Algebra ->  Volume -> SOLUTION: Here is the question: The dimensions of a brick, in inches, are 2 by 4 by 8. How many such bricks are needed to have a total volume of exactly 1 cubic foot? I know that to fin      Log On


   

Question 691412: Here is the question:
The dimensions of a brick, in inches, are 2 by 4 by 8. How many such bricks are needed to have a total volume of exactly 1 cubic foot?
I know that to find volume you multiply 2x4x8. So I did that and got 64, but I'm not sure what to do from there. Hope you can help!
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
The dimensions of a brick, in inches, are 2 by 4 by 8. How many such bricks are needed to have a total volume of exactly 1 cubic foot?
Since they give you the dimensions of the brick in INCHES -- we begin by converting 1 cubic foot into cubic inches:
12*12*12 = 1728 cubic inches
.
You already found that the volume of a brick is 64 cubic inches
.
to find how many bricks are needed to make 1 cubic foot:
1728/64 = 27 bricks