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The temperature at 5 P.M. is 20°F. The temperature at 10 P M. is -5°F. How many degrees did the temperature fall?

Answer 1

Gianna Caruso

#=25^@F#

#20-(-5)# #=20+5# #=25^@F#

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Answer 2

Nova Allen

To find how many degrees the temperature fell, subtract the temperature at 10 P.M. from the temperature at 5 P.M.

[ \text{Temperature fall} = \text{Temperature at 5 P.M.} - \text{Temperature at 10 P.M.} ]

[ = 20°F - (-5°F) ]

[ = 20°F + 5°F ]

[ = 25°F ]

Therefore, the temperature fell by 25°F.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.