Question

At Mobjack Middle School, enrollment decreased from 590 students in 2019 to 579 students in 2020. What is the percent decrease in enrollment? (Round your answer to the nearest tenth of a percent.)-11%-1.7%-64.9%-1.9%

Answer 1

Consider that 590 represents 100%; then, we need to calculate:

`\begin{gathered} 590\to100\text{percent} \\ 579\to x\text{ percent} \end{gathered}`
`\begin{gathered} \Rightarrow \\ (590)/(100)=(579)/(x) \\ \Rightarrow x=(579\cdot100)/(590)=(57900)/(590) \end{gathered}`

Then, the decrement in enrollment is:

`y=x-100=-1.8644\ldots\approx-1.9`

The answer is -1.9%