When Erik went to bed one winter night in northern Minnesota, the temperature was -2°F. By the time he got up the next morning, the temperature had dropped to -17°F. Assuming the temperature dropped steadily through the night, what was the temperature in the middle of the night?

-19°F
-9.5°F
-15°F
-8.5°F

Question

When Erik went to bed one winter night in northern Minnesota, the temperature was -2°F. By the time he got up the next morning, the temperature had dropped to -17°F. Assuming the temperature dropped steadily through the night, what was the temperature in the middle of the night?

-19°F
-9.5°F
-15°F
-8.5°F

anonymous · Answer

D, It think!

hoblos · Answer

the temperature dropped uniformly so at the mid of the night the temperature was at the middle between -2 and -17 which is 
(-2-17)/2 = -19/2 = -9.5