Teresa estimates that they had a giraffe in a zoo is 18 ft in fact it is 16 ft tall what is Teresa's percent error use proportional relationships to solve the problem show all of your work and round your answer to the nearest tenth
To find Teresa's percent error, we need to calculate the difference between her estimate and the actual height of the giraffe, and then find what proportion of the actual height that difference represents. The formula for percent error is:
percent error = (|estimate - actual| / actual) * 100
Given that Teresa's estimate is 18 ft and the actual height is 16 ft, we can plug these values into the formula:
percent error = (|18 - 16| / 16) * 100
percent error = (2 / 16) * 100
percent error = (1/8) * 100
percent error = 12.5
Therefore, Teresa's percent error is 12.5%.