SOLUTION: A patient needs to keep their blood sugar levels within 7 milligrams per deciliter of 85 milligrams per deciliter. What blood sugar levels are okay for that patient? Enter solution

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Question 1188515: A patient needs to keep their blood sugar levels within 7 milligrams per deciliter of 85 milligrams per deciliter. What blood sugar levels are okay for that patient? Enter solution as an interval or union of intervals.
Answer by Shin123(626) About Me  (Show Source):
You can put this solution on YOUR website!
The patient's blood sugar levels can go 7 milligrams per deciliter above or below 85. Therefore, the interval is [85-7,85+7] or [78,92].