Question

what is the percent decrease in the distance tia lives from her school? $\frac{9}{15}=\frac{square}{100}%$

Explanation:

Step1: Recall percent - decrease formula

Percent decrease=$\frac{\text{Original}-\text{New}}{\text{Original}}\times100\%$. Here, the original distance is 15 and the new distance is 9.

Step2: Calculate the difference

The difference between the original and new values is $15 - 9=6$.

Step3: Calculate the percent - decrease

Percent decrease = $\frac{15 - 9}{15}\times100\%=\frac{6}{15}\times100\%$. Since $\frac{6}{15}=\frac{2}{5}=0.4$, then $0.4\times100\% = 40\%$.

Answer:

40%