Question

Which is the best estimate for 3 times pi?(1 point)
Responses

637
6 Start Fraction 3 over 7 End Fraction

937
9 Start Fraction 3 over 7 End Fraction

917
9 Start Fraction 1 over 7 End Fraction

647

Answer 1

To estimate \( 3 \times \pi \), we can use the approximation that \( \pi \) is about \( 3.14 \).

Calculating \( 3 \times \pi \):
\[
3 \times 3.14 \approx 9.42
\]

Now let's evaluate the provided options to find the best estimate for \( 9.42 \):

- 637
- \( 6 \frac{3}{7} \) (which is \( 6 + \frac{3}{7} \approx 6.43 \))
- 937
- \( 9 \frac{3}{7} \) (which is \( 9 + \frac{3}{7} \approx 9.43 \))
- 917
- \( 9 \frac{1}{7} \) (which is \( 9 + \frac{1}{7} \approx 9.14 \))
- 647

The option \( 9 \frac{3}{7} \approx 9.43 \) is the closest to \( 9.42 \).

Therefore, the best estimate for \( 3 \times \pi \) is:
**\( 9 \frac{3}{7} \)**.