Use Proportional Relationships Unit Test
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 (4 points)
To find Teresa's percent error, we need to compare her estimated height with the actual height and calculate the difference as a percentage of the actual height.
First, we can find the absolute difference between Teresa's estimate (18 feet) and the actual height (16 feet):
Absolute difference = |18 - 16| = 2 feet
Next, we can calculate the percent difference by dividing the absolute difference by the actual height and multiplying by 100:
Percent difference = (2 / 16) * 100 = 12.5%
Therefore, Teresa's percent error is 12.5%.