To calculate the number of nails needed using Sarah's rule of dividing the length of the beam by 3, we can find the results for the given lengths:
- Length of Beam: 9 inches → \( 9 ÷ 3 = 3 \) nails
- Length of Beam: 15 inches → \( 15 ÷ 3 = 5 \) nails
- Length of Beam: 8 inches → \( 8 ÷ 3 \approx 2.67 \) nails (round down to 2 nails)
- Length of Beam: 10 inches → \( 10 ÷ 3 \approx 3.33 \) nails (round down to 3 nails)
- Length of Beam: 39 inches → \( 39 ÷ 3 = 13 \) nails
Based on these calculations, you can fill in the response areas as follows:
- For Length of Beam 9: Number of Nails = 3
- For Length of Beam 15: Number of Nails = 5
- For Length of Beam 8: Number of Nails = 2
- For Length of Beam 10: Number of Nails = 3
- For Length of Beam 39: Number of Nails = 13
If any of the numbers are not pre-filled or do not match with your response area, please let me know!