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.
show how you did it
To find the percent error, we need to compare the estimated height to the actual height of the giraffe.
First, subtract the actual height from the estimated height: 18 feet - 16 feet = 2 feet.
Next, divide the difference by the actual height: 2 feet / 16 feet = 0.125.
Finally, multiply the result by 100 to get the percent: 0.125 * 100 = 12.5%.
Therefore, Teresa's percent error is 12.5%.
u sure
Apologies for the confusion in my previous response. I made an error in the calculation. Let's go through the correct steps to find the percent error:
We are given:
Estimated height = 18 feet
Actual height = 16 feet
To find the difference between the estimated and actual height, subtract the actual height from the estimated height: 18 feet - 16 feet = 2 feet.
Next, divide the difference by the actual height: 2 feet / 16 feet = 0.125.
Finally, multiply the result by 100 to get the percent: 0.125 * 100 = 12.5%.
Therefore, Teresa's percent error is 12.5%.
To find the percent error, we use the formula:
Percent Error = (|Estimated Value - Actual Value| / Actual Value) * 100
In this case, the estimated value is 18 feet, and the actual value is 16 feet.
First, we need to find the absolute difference between the estimated value and the actual value:
|Estimated Value - Actual Value| = |18 - 16| = 2
Next, we divide the absolute difference by the actual value:
2 / 16 = 0.125
Finally, we multiply by 100 to express it as a percentage:
0.125 * 100 = 12.5
Therefore, Teresa's percent error is approximately 12.5%.