Anson estimated he would need 17 hours to complete his science project. He actually needed 19 1 2 19 1 2 hours. What was his per
cent error? A. 12.8% B. 14.7% C. 87.2% D. 115%
2 answers:
Answer:
The answer is B. 14.7%.
Step-by-step explanation:
Given:
Estimated time need to complete project
.
Actually time needed
=
h.
Difference between the time
= 
.
So, the percentage error is
.
Therefore, the answer is B. 14.7%.
<u>Answer: </u>
Option (A)
Anson percent error is 12.8%
<u>Explanation:</u>
Given the approximate value of completion = 17 hours
Exact value of completion = 19.5 hours
Absolute Error = Exact – Approximation
Absolute Error = 19.5 – 17 = 2.5
% Error =
% Error =
Therefore, the percent error is 12.8%
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The solution is x=16. hope it helps