Chapter 11.1, Problem 43SR

To determine

To find the percent of change in endangered species.

Answer to Problem 43SR

There is an increase in endangered species by 9.3%.

Explanation of Solution

Given:

In 2000, the endangered species in the U.S are 356, five years later there were 389 endangered species.

Calculation:

The percent of change in endangered species is,

  $\begin{array}{l}\frac{389-356}{356}\times 100=\frac{33}{356}\times 100\\ =\frac{3300}{356}\\ =9.2696\%\\ \approx 9.3\%\end{array}$

Hence, there is an increase in endangered species by 9.3%.