SOLUTION: Normal body temperature T in humans is within 1F OF 99F. Use absolute value to write the range as an inequality.
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Question 1146774: Normal body temperature T in humans is within 1F OF 99F. Use absolute value to write the range as an inequality. Answer by Theo(13342) (Show Source):
if you multiply both sides of the second inequality by -1, then your two inequalities become:
(99 - x) <= 1 or (99 - x) >= -1
add x to both sides of each inequality; subtract 1 from both sides of the first inequality; add 1 to both sides of the second inequality.
you will get:
98 <= x or 100 >= x
98 <= x is the same as x >= 98.
100 >= x is the same as x <= 100.
you get x >= 98 and x <= 100 to get 98 <= x <= 100.
the temperature can be anywhere between 98 and 100 inclusive and be considered normal.
