Question

a gift box has dimensions of 8 1/2 inches 5 1/2 inches and 2 1/2 inches respectively how many cubes with side lengths of 1/2 inches would be needed to fill the gift box​

Answer 1

Find the volume of each and then divide the volume of the box by the volume of the cube.

Volume of box: 8 1/2 x 5 1/2 x 2 1/2 = 116 7/8 cubic inches.

Volume of cube = 1/2^3 = 1/8 cubic inches

Number of cubes: 116 7/8 / 1/8 = 935 cubes.