Question

4.
Find the percent of change in altitude if a weather balloon moves from 100 ft to 103 ft. Describe the percent of change as an increase or decrease. Round to the nearest tenth if necessary.

Answer 1

To find the percent of change in altitude when the weather balloon moves from 100 ft to 103 ft, you can use the formula for percent change:

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

In this case:

- Old Value = 100 ft
- New Value = 103 ft

Now, substitute the values into the formula:

\[
\text{Percent Change} = \left( \frac{103 - 100}{100} \right) \times 100
\]
\[
= \left( \frac{3}{100} \right) \times 100
\]
\[
= 3\%
\]

The percent of change is an increase of 3%.