https://file.aiquickdraw.com/mathbot/file/1729610611185ev6wgwc1.jpg

Let's break this problem down step by step.

### Given:
- Charles has **7600 mL** of paint.
- **20 mL** of paint can cover **1 m²**.
- Each cube has an edge length of **4 meters** (as shown in the image).

### Step 1: Find the surface area of one cube.

The surface area \(A\) of a cube is given by the formula:

\[
A = 6 \times (\text{side length})^2
\]

For this cube, the side length is **4 meters**:

\[
A = 6 \times (4)^2 = 6 \times 16 = 96 \text{ m²}
\]

### Step 2: Find how much paint is needed to cover one cube.

Since **20 mL** of paint is needed to cover **1 m²**, to cover the surface area of one cube, we will need:

\[
\text{Paint required for one cube} = 96 \, \text{m²} \times 20 \, \text{mL/m²} = 1920 \, \text{mL}
\]

### Step 3: Determine how many cubes can be covered with 7600 mL of paint.

To find how many cubes Charles can completely cover with the paint he has, divide the total amount of paint by the amount required for one cube:

\[
\text{Number of cubes} = \frac{7600 \, \text{mL}}{1920 \, \text{mL/cube}} = 3.958
\]

Since Charles can only completely cover whole cubes, he can cover **3 cubes**.

### Final Answer:
Charles can completely cover **3 cubes** with his paint.

---

Would you like a detailed explanation of any step or further clarification? Here are some related questions you could explore:

1. How much paint would be left after covering 3 cubes?
2. What if the side length of the cube were 5 meters instead of 4 meters?
3. How many cubes could Charles cover if he had 10,000 mL of paint?
4. What is the total area Charles can cover with 7600 mL of paint?
5. If Charles uses 30 mL per m² instead of 20 mL, how many cubes can he paint?

### Tip:
For cube-related problems, always check if you're calculating surface area or volume, as they often lead to different solutions.

Charles has 7600 mL of paint. 20 mL of paint will cover 1 m². How many of these cubes (with a side length of 4 meters) can he completely cover with paint?

This problem explores how much surface area can be covered with a given amount of paint. Learn how to calculate the surface area of a cube, convert paint usage per square meter, and determine how many cubes with 4m side lengths can be fully covered using 7600 mL of paint.

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