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Greg rounded an answer on his calculator to 20. The exact number on his calculator was 19.72. What is the percent error of Greg's rounded answer? Give your answer to the nearest 10th of a percen.
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Respuesta :

sqdancefan

9514 1404 393

Answer:

  1.4%

Step-by-step explanation:

The error can be calculated from ...

  error % = (error amount)/(actual value) × 100%

  = (20-19.72)/(19.72) × 100%

  = 0.28/19.72 × 100%

  ≈ 1.4%

The rounded answer is high by about 1.4%.

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