smartkid17 smartkid17

23-11-2016
Mathematics

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Daniela measures her math book and records its width as 21.9 cm to the nearest tenth of a centimeter. The actual measurement of the book’s width is 22.0 cm. What is the percent error of her measurement? Round your answer to the nearest tenth of a percent.

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frednicki frednicki

23-11-2016

22-21.9 = 0.1
You round it off adding a zero .
The answer is 1.0
You multiply by 100
You get 100

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