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10-09-2020
Mathematics

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A doctor has found that, over the years, 95% of the babies he has delivered weighed |x-7.9|<1.5 pounds. What range of weights corresponds to this inequality?

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jimthompson5910 jimthompson5910

10-09-2020

Answer: 6.4 < x < 9.4

Work Shown:

| x-7.9 | < 1.5

-1.5 < x-7.9 < 1.5

-1.5+7.9 < x-7.9+7.9 < 1.5+7.9

6.4 < x < 9.4

x is between 6.4 and 9.4, excluding both endpoints

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