Teresa 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!!
To find the percent error, we need to compare Teresa's estimate to the actual height of the giraffe.
First, we calculate the absolute difference between the estimated height and the actual height: 18 - 16 = 2.
Next, we calculate the percent error by dividing the absolute difference by the actual height and multiplying by 100: 2 / 16 * 100 = 12.5%.
Therefore, Teresa's percent error is 12.5%.