Question

At the beginning of spring, Amelia planted a small sunflower in her backyard. When it was first planted, the sunflower was 20 inches tall. The sunflower then began to grow at a rate of 1.5 inches per week. How tall would the sunflower be after 9 weeks? How tall would the sunflower be after ww weeks?
Answer
Attempt 2 out of 2

Height after 9 weeks:
Height after ww weeks:

Answer 1

To find the height of the sunflower after a certain number of weeks, you can use the following formula:

\[
\text{Height after } x \text{ weeks} = \text{initial height} + (\text{growth rate} \times x)
\]

In this case, the initial height of the sunflower is 20 inches, the growth rate is 1.5 inches per week, and we want to calculate the height after 9 weeks and after \( ww \) weeks.

1. **Height after 9 weeks:**
\[
\text{Height after 9 weeks} = 20 + (1.5 \times 9)
\]
\[
= 20 + 13.5
\]
\[
= 33.5 \text{ inches}
\]

2. **Height after \( ww \) weeks:**
Let's represent the height after \( ww \) weeks using the formula:
\[
\text{Height after } ww \text{ weeks} = 20 + (1.5 \times ww)
\]

Putting it all together:

- **Height after 9 weeks:** 33.5 inches
- **Height after \( ww \) weeks:** \( 20 + 1.5 \times ww \) inches

You can substitute the value of \( ww \) into the formula to get the specific height for that number of weeks.