in a wildlife park, there were 20 gray wolves. after a few years, there were 38 gray wolves. what was the…

in a wildlife park, there were 20 gray wolves. after a few years, there were 38 gray wolves. what was the percent change? ?%

in a wildlife park, there were 20 gray wolves. after a few years, there were 38 gray wolves. what was the percent change? ?%

Answer

Explanation:

Step1: Calculate the change in number

$38 - 20=18$

Step2: Calculate the percent - change formula

Percent change=$\frac{\text{Change}}{\text{Original number}}\times100%$ Substitute the values: $\frac{18}{20}\times100%$

Step3: Simplify the expression

$\frac{18}{20}\times100% = 0.9\times100%=90%$

Answer:

$90$