Question

Erin wants to fill the jewelry box with beads. One package of beads is 120 cubic inches. How many packages of beads should Erin purchase to fill the jewelry box completely?

Answer 1

9 packages of beads

Explanation:

volume of cuboid = area of base × height

⇒ volume of jewelry box = (15 × 12) × 6

= 180 × 6

= 1080 in³

Given:

• 1 package of beads = 120 in³

Number of packages of beads = volume of box ÷ volume of 1 package of beads

⇒ Number of packages of beads = 1080 ÷ 120

= 9