SOLUTION: A hollow cement brick measures 12 inches tall and 8 inches wide and 5 inches deep on the outside, see figure. The brick is 1 inch thick. Cement weighs 0.077 pounds per cubic inch.

Question 1029425: A hollow cement brick measures 12 inches tall and 8 inches wide and 5 inches deep on the outside, see figure. The brick is 1 inch thick. Cement weighs 0.077 pounds per cubic inch. Find the weight of the brick to the nearest tenth of a pound.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The brick is 12*8*5 cubic inches=480 in^3.
The inside has 2 inches removed from each part, one on each side.
So it is 10*6*3 that is hollow or 180 in^3.
Therefore, the remainder has cement, 300 in^3, or 23.1 pounds
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