Question

kayla's class went on a field trip to an aquarium . one tank had 30 clown fish. She miscounted the total number of clown fish in the tank and recorded it as 24 fish . What is Kayla's percent error?

Answer 1

30-24/30= 0.2
0.2*100=20%

Answer 2

% error = $\frac{|accepted - measured|}{accepted} *100$

now, we plug in your data:
$\frac{|accepted - measured|}{accepted}*100 \\ \frac {|30-24|}{30}*100 \\ \frac {6}{30}*100 \\ \frac {6}{30}*100 = 20$

therefore, Kayla's percent error is 20%