This figure represents a box that is filled with packages of colored pencils.

What is the volume of the box in terms of packages of colored pencils?

Responses

7 packages
7 packages

19 packages
19 packages

28 packages
28 packages

56 packages
56 packages
A rectangular prism labeled box is made up of unit cubes. There are 4 layers, and each layer is 2 units long and 7 units wide. A second rectangular prism labeled package of colored pencils is beside the first prism. The second prism has 2 layers that are each 1 unit long and 1 unit wide.

1 answer

To find the volume of the box in terms of packages of colored pencils, we first need to calculate the volumes of both the box and a single package of colored pencils.

Step 1: Calculate the volume of the box.

The box is described as having:

  • 4 layers
  • Each layer is 2 units long and 7 units wide

The volume \( V \) of a rectangular prism is calculated as: \[ V = \text{length} \times \text{width} \times \text{height} \]

For the box:

  • Length = 2 units
  • Width = 7 units
  • Height = 4 layers

Calculating the volume of the box: \[ V_{\text{box}} = 2 , \text{(length)} \times 7 , \text{(width)} \times 4 , \text{(height)} = 56 , \text{units}^3 \]

Step 2: Calculate the volume of a package of colored pencils.

The package of colored pencils is described as having:

  • 2 layers
  • Each layer is 1 unit long and 1 unit wide

Calculating the volume of a package: \[ V_{\text{package}} = 1 , \text{(length)} \times 1 , \text{(width)} \times 2 , \text{(height)} = 2 , \text{units}^3 \]

Step 3: Determine the number of packages of colored pencils that fit into the box.

To find how many packages fit into the box, we divide the volume of the box by the volume of one package: \[ \text{Number of packages} = \frac{V_{\text{box}}}{V_{\text{package}}} = \frac{56 , \text{units}^3}{2 , \text{units}^3} = 28 \]

So, the volume of the box in terms of packages of colored pencils is 28 packages.