Math Problem Statement

Sabrina is making a box in the shape of a cube with a side length of s. The volume of the box, s³, is 27/1000 ft³. Sabrina wants to completely cover two of the faces with labels. Determine whether each statement is true.

Solution

Let's go through the problem step by step.

The volume of the cube is given by s3=271000ft3s^3 = \frac{27}{1000} \, \text{ft}^3.

1. The length of one side of the box, ss, is 310ft\frac{3}{10} \, \text{ft}.

The volume of a cube is calculated as s3s^3, where ss is the side length. We are given that: s3=271000s^3 = \frac{27}{1000} To find ss, we take the cube root of both sides: [ s = \sqrt[3]{\frac{27}{1000}} = \frac{\sqrt[3]{27}}{\sqrt[3]{1000}} = \frac{3}{10} , \text{ft} ] This statement is True.

2. The area of one face of the box, s2s^2, is 610ft2\frac{6}{10} \, \text{ft}^2.

The area of one face of the cube is s2s^2. Since we know s=310s = \frac{3}{10}, we calculate: s2=(310)2=9100ft2s^2 = \left(\frac{3}{10}\right)^2 = \frac{9}{100} \, \text{ft}^2 The statement says 610ft2\frac{6}{10} \, \text{ft}^2, but 610=0.6\frac{6}{10} = 0.6, and 9100=0.09\frac{9}{100} = 0.09. These are not equal, so this statement is False.

3. The area of both labels on the box is 925ft2\frac{9}{25} \, \text{ft}^2.

If one face has an area of 9100ft2\frac{9}{100} \, \text{ft}^2, then the area of two faces would be: 2×9100=18100=0.18ft22 \times \frac{9}{100} = \frac{18}{100} = 0.18 \, \text{ft}^2 The statement claims the area is 925ft2\frac{9}{25} \, \text{ft}^2, which is: 925=0.36ft2\frac{9}{25} = 0.36 \, \text{ft}^2 These are not equal, so this statement is False.

4. The perimeter of one face of the box, 4s4s, is 65ft\frac{6}{5} \, \text{ft}.

The perimeter of a square face is 4s4s. Since s=310s = \frac{3}{10}, we calculate: 4s=4×310=1210=1.2ft4s = 4 \times \frac{3}{10} = \frac{12}{10} = 1.2 \, \text{ft} The statement claims 65ft\frac{6}{5} \, \text{ft}, and 65=1.2\frac{6}{5} = 1.2. So this statement is True.

Summary of answers:

  1. True
  2. False
  3. False
  4. True

Would you like any additional details on these solutions, or do you have further questions?

Here are 5 follow-up questions for practice:

  1. How would the volume change if the side length ss doubled?
  2. What is the total surface area of the cube?
  3. If each label covered exactly one face, how many square feet of labels are needed?
  4. What would the perimeter be if the side length was increased by 50%?
  5. How would the volume of the cube change if the side length was reduced by half?

Tip:

To quickly check or manipulate powers of fractions, remember that both the numerator and denominator get raised to the respective power.

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Math Problem Analysis

Mathematical Concepts

Cube Volume
Cube Root
Area of a Square
Perimeter of a Square

Formulas

Volume of a cube: V = s³
Cube root: s = ³√(V)
Area of one face: s²
Perimeter of one face: 4s

Theorems

Properties of Cubes
Properties of Squares

Suitable Grade Level

Grades 6-8