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. Show all your work and round your answer to the nearest tenth.(4 points) Can u do it a 7th grader would do it and pls make it short
To find the percent error, we can use the formula:
Percent Error = ((Actual Value - Estimated Value) / Actual Value) * 100
Given that the actual height of the giraffe is 16 feet and Teresa's estimate is 18 feet, we can substitute these values into the formula:
Percent Error = ((16 - 18) / 16) * 100
= (-2 / 16) * 100
= -0.125 * 100
= -12.5%
Therefore, Teresa's percent error is -12.5%.
Can u make the it 1 sentence
Teresa's percent error in estimating the height of the giraffe in the zoo is -12.5%.
Can u give the math
Certainly! Here's the mathematical expression for calculating Teresa's percent error:
Percent Error = ((16 - 18) / 16) * 100 = -12.5%
To find Teresa's percent error, we'll use the formula:
Percent Error = (|Measured Value - Estimated Value| / Measured Value) x 100
First, calculate the absolute difference between the measured value (16 feet) and the estimated value (18 feet):
|16 - 18| = 2
Then, divide this difference by the measured value:
2 / 16 = 0.125
Finally, multiply the result by 100 to get the percent error:
0.125 x 100 ≈ 12.5%
Therefore, Teresa's percent error is approximately 12.5%.