Question
Evaluate and select the answer's size class from the options \( 130 \cdot 0.03= \) a. \( \approx 0,4 \) b. \( \approx 4 \) c. \( \approx 40 \) d. \( \approx 400 \)
Ask by Gonzalez Edwards. in Bangladesh
Jan 30,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
The answer is approximately 4.
Solution
To evaluate the expression \( 130 \times 0.03 \):
\[
130 \times 0.03 = 3.9
\]
Rounding \( 3.9 \) to the nearest whole number gives approximately \( 4 \).
**Answer:**
b. \( \approx 4 \)
Reviewed and approved by the UpStudy tutoring team
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Simplify this solution The Deep Dive
To solve \( 130 \cdot 0.03 \), you can first simplify the multiplication. When you multiply, you're essentially finding 3% of 130. Notice that \( 0.03 \) can be rewritten as \( \frac{3}{100} \), which means \( 130 \cdot 0.03 = 130 \cdot \frac{3}{100} = \frac{390}{100} = 3.90 \). So, the closest size class from the options would be \( \approx 4 \). Did you know that estimating while doing calculations can speed up your problem-solving? If 130 seems large, think about dividing it into smaller, easier chunks. For instance, you could estimate \( 130 \) as \( 100 + 30 \) and calculate \( 3 + 0.9 = 3.9 \) which still rounds to about \( 4 \). Simple and efficient!
