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.

Answer 1

To find Teresa's percent error, we need to use the formula:

Percent error = |(Estimated value - Actual value)/Actual value| * 100

Plugging in the given values, we have:

Percent error = |(18 - 16)/16| * 100

Simplifying inside the absolute value, we have:

Percent error = |2/16| * 100

Simplifying the fraction, we have:

Percent error = |1/8| * 100

Finding the absolute value, we have:

Percent error = (1/8) * 100

Calculating the fraction and multiplying by 100, we have:

Percent error ≈ 0.125 * 100 = 12.5

Therefore, Teresa's percent error is approximately 12.5%.

Answer 2

can you simplify how you got your answer?