eresa estimates that the height of a giraffe in a zoo is 18 feet. In fact, it is 16 feet tall. What is Teresa’s percent error? Use proportional relationships to solve the problem. Be sure to show all your work, provide your answer as a percentage, and round your answer to the nearest tenth.(4 points)
To find Teresa's percent error, you can use the formula:
Percent Error = (|Actual Value - Estimated Value| / Actual Value) x 100
Given that the actual height of the giraffe is 16 feet and Teresa estimated it as 18 feet, we have:
Percent Error = (|16 - 18| / 16) x 100
Percent Error = (|-2| / 16) x 100
Percent Error = (2 / 16) x 100
Percent Error = 0.125 x 100
Percent Error = 12.5%
Therefore, Teresa's percent error is 12.5%.