Question

An ivy plant was 19 inches long. Two years later it was 31 inches long.

Question
What was the percent increase, to the nearest hundredth, of the length of the ivy? Enter the answer in the box.

Response area with 1 text input box
percent

Answer 1

To calculate the percent increase in the length of the ivy plant, you can use the following formula:

\[
\text{Percent Increase} = \left(\frac{\text{New Length} - \text{Old Length}}{\text{Old Length}}\right) \times 100
\]

In this case:

- Old Length = 19 inches
- New Length = 31 inches

Now, substituting the values into the formula:

\[
\text{Percent Increase} = \left(\frac{31 - 19}{19}\right) \times 100
\]

Calculating the difference:

\[
31 - 19 = 12
\]

Now, substitute this value back into the formula:

\[
\text{Percent Increase} = \left(\frac{12}{19}\right) \times 100
\]

Calculating the division:

\[
\frac{12}{19} \approx 0.631578947368421
\]

Now, multiply by 100:

\[
0.631578947368421 \times 100 \approx 63.1578947368421
\]

Rounding to the nearest hundredth:

\[
63.16
\]

So, the percent increase in the length of the ivy plant is **63.16**.