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 you answer as a percentage, and round your answer to the nearest tenth
The percent error can be calculated using the formula:
Percent Error = (Actual Value - Estimated Value) / Actual Value * 100
Given that the actual value is 16 and the estimated value is 18, we can substitute these values into the formula:
Percent Error = (16 - 18) / 16 * 100
Simplifying the equation:
Percent Error = -2 / 16 * 100
Percent Error = -0.125 * 100
Percent Error = -12.5
Rounding the answer to the nearest tenth, the percent error is approximately -12.5%.