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 Teresa's percent error, we need to calculate the difference between her estimate and the actual height of the giraffe, and then divide that difference by the actual height and multiply by 100. In this case, Teresa estimated the height to be 18 feet, while the actual height is 16 feet. The difference between Teresa's estimate and the actual height is 18 - 16 = 2 feet. Now, we divide this difference by the actual height: 2 / 16 = 0.125. To convert this to a percentage, we multiply by 100: 0.125 * 100 = 12.5%. Therefore, Teresa's percent error is 12.5%.
explain with the paragraph
Teresa's estimate of the height of the giraffe in the zoo was 18 feet, while the actual height of the giraffe turned out to be 16 feet. To find out Teresa's percent error, we need to calculate the difference between her estimate and the actual height. In this case, the difference is 18 - 16 = 2 feet. Now, we need to express this difference as a proportion of the actual height. The actual height is 16 feet, so we divide the difference (2 feet) by the actual height (16 feet) to get 2/16 = 0.125. To convert this to a percentage, we multiply by 100, which gives us 0.125 * 100 = 12.5. Thus, Teresa's percent error is 12.5%. This means that her estimate was off by 12.5% compared to the actual height.
