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STALIN [3.7K]
3 years ago
9

Roger has a nail that is 12 centimeters long he measures and records the length of the nail at 15 centimeters what is the percen

t of error in his measurement
Mathematics
2 answers:
navik [9.2K]3 years ago
8 0
20% because the 15-12=3 and then you cross multiply 3 and 100 and then you divide by 15. Which is 20.
3. x
-- --
15 100
vagabundo [1.1K]3 years ago
8 0
<h2>Answer:</h2>

The  percent of error in his measurement is:

                             25%

<h2>Step-by-step explanation:</h2>

The percent error is calculated by the formula:

\text{Percent error}=\dfrac{|\text{Recorded measurement-Actual measurement}|}{\text{Actual measure}}\times 100

Roger has a nail that is 12 centimeters long he measures and records the length of the nail at 15 centimeters.

Hence,

\text{Percent error}=\dfrac{|15-12|}{12}\times 100\\\\\text{Percent error}=\dfrac{3}{12}\times 100\\\\\text{Percent error}=25\%

          Hence, the percent error is: 25%.

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