Question

Samara is knitting a scarf. She has already knitted 6 centimeters and will knit 1.5 centimeters each day.
Fill in the table with the total length of the scarf after 4 and 6 days.
Number of days Length of the scarf (cm)
4
6

Answer 1

To calculate the total length of the scarf after a certain number of days, you can use the following formula:

Total Length after \( n \) days = Initial Length + (Daily Increase × Number of Days)

Given:
- Initial Length = 6 cm
- Daily Increase = 1.5 cm

For 4 days:

Total Length after 4 days = \( 6 + (1.5 \times 4) \)
= \( 6 + 6 \)
= \( 12 \) cm

For 6 days:

Total Length after 6 days = \( 6 + (1.5 \times 6) \)
= \( 6 + 9 \)
= \( 15 \) cm

Now, filling in the table:

| Number of days | Length of the scarf (cm) |
|----------------|---------------------------|
| 4 | 12 |
| 6 | 15 |