Respuesta :
Answer:
Percentage error = 25 %
Step-by-step explanation:
Given : Roger has a nail that is 12 centimeters long. He measures and records the length of the nail as 15 centimeters.
To find : What is the percent error in Roger's measurement?
Solution : We have given that
Length of roger nail = 12 cm.
He measures length = 15 cm.
Error = 15 cm - 12 cm.
Error in length = 3 cm .
Percentage error = [tex]\frac{Measured-exact}{exact}*100[/tex].
Percentage error = [tex]\frac{15- 12}{12}*100[/tex].
Percentage error = [tex]\frac{3}{12}*100[/tex].
Percentage error = 25 %
Therefore, Percentage error = 25 %
