Question

Last year, there were 43 scienceprojects submitted to the student sciencefair. This year, there was 52 submitted.Find the percent change. Round to thenearest tenth.

Answer 1

An increase of 20.9%

Step-by-step explanation:

Number of projects submitted last year = 43

Number of projects submitted this year = 52

To calculate the percentage change, we use the formula:

`\text{Percent change =}\frac{\text{Final Value-}Initial\text{ Value}}{\text{Initial Value}}*100`

Substituting our values, we have:

`\begin{gathered} \text{Percent change =}\frac{52-43}{\text{4}3}*100 \\ =(9)/(43)*100 \\ =0.2093*100 \\ =20.9\% \end{gathered}`

The percent change is an increase of 20.9% (correct to the nearest tenth).