What percent of 35 kg is 2.5 kg?

Answer

To find out what percent of 35 kg is 2.5 kg, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Problem**: We need to find what percentage 2.5 kg is of 35 kg. We can set this up as an equation where \( x \) is the percentage we want to find.

2. **Set Up the Equation**: We can express the problem mathematically as:
\[ x\% \text{ of } 35 \text{ kg} = 2.5 \text{ kg} \]
This can be rewritten as:
\[ \frac{x}{100} \times 35 = 2.5 \]

3. **Rearrange the Equation**: To isolate \( x \), we can rearrange the equation:
\[ x = \frac{2.5 \times 100}{35} \]

4. **Calculate the Right Side**: Now, we will calculate \( \frac{2.5 \times 100}{35} \):
- First, calculate \( 2.5 \times 100 = 250 \).
- Now divide \( 250 \) by \( 35 \):
\[ x = \frac{250}{35} \]

5. **Simplify the Fraction**: We can simplify \( \frac{250}{35} \):
- Divide both the numerator and the denominator by \( 5 \):
\[ x = \frac{50}{7} \]

6. **Convert to Decimal**: Now, we will convert \( \frac{50}{7} \) into a decimal:
- Performing the division \( 50 \div 7 \) gives approximately \( 7.142857 \).

7. **Final Result**: Rounding to two decimal places, we find:
\[ x \approx 7.14\% \]

### Final Answer:
Thus, **2.5 kg is approximately 7.14% of 35 kg**.

---