Density

[Guest]

A brick has the following dimensions:

8 x 4 x 2 inches.

Weight- 4.5 pounds.

Calculate density:

(A)- in pounds per cubic foot.

(B)- in grams per cubic centimeter.

[burgess]

A brick has the following dimensions:

8 x 4 x 2 inches.

Weight- 4.5 pounds.

Calculate density:

(A)- in pounds per cubic foot.

(B)- in grams per cubic centimeter.

Density = weight/volume
1 inch= 1/12 foot
1 pound= 453.5g

Use these above data to solve the problem

[Guest]

My solution:

8 * 4 * 2 = 64 cubic inches

64 / 1728 = 0.03704 cubic feet

0.03704 * 4.5 = 0.1668 lbs.

64 / 0.061024 = 1.048.76 cubic centimeters


453.6 / 1048.76 = 0.43251 grams per cubic centimeter

Where did I make the error(s)?