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Hailey measured a line to be 10.4 inches long. If the actual length of the line is 10.3 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?
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%

Hailey measured a line to be 1010.44 inches long. If the actual length of the line is 1010.33 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?\newlineAnswer:_________ % \%

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Q. Hailey measured a line to be 1010.44 inches long. If the actual length of the line is 1010.33 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?\newlineAnswer:_________ % \%
  1. Understand percent error: Understand the concept of percent error.\newlinePercent error is a measure of how inaccurate a measurement is, represented as a percentage of the actual value. The formula for percent error is:\newlinePercent Error = (Measured ValueActual Value/Actual Value)×100(|\text{Measured Value} - \text{Actual Value}| / \text{Actual Value}) \times 100
  2. Identify values: Identify the measured value and the actual value.\newlineIn this problem, the measured value is 10.410.4 inches, and the actual value is 10.310.3 inches.
  3. Calculate absolute difference: Calculate the absolute difference between the measured value and the actual value.\newlineAbsolute difference = Measured ValueActual Value=10.4 inches10.3 inches=0.1 inches|\text{Measured Value} - \text{Actual Value}| = |10.4 \text{ inches} - 10.3 \text{ inches}| = 0.1 \text{ inches}
  4. Divide by actual value: Divide the absolute difference by the actual value.\newlineDivide 0.10.1 inches by 10.310.3 inches to get the error fraction.\newlineError fraction = 0.1 inches10.3 inches0.00970873786407767\frac{0.1 \text{ inches}}{10.3 \text{ inches}} \approx 0.00970873786407767
  5. Convert to percent: Convert the error fraction to a percent.\newlineMultiply the error fraction by 100100 to convert it to a percent.\newlinePercent Error = 0.00970873786407767×1000.970873786407767%0.00970873786407767 \times 100 \approx 0.970873786407767\%
  6. Round to nearest tenth: Round the percent error to the nearest tenth of a percent.\newlineRounding 0.970873786407767%0.970873786407767\% to the nearest tenth of a percent gives us 1.0%1.0\%.

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