During one week in the winter, the temperature dropped an average of 2° per hour for 8 hours. If the temperature was -2°F at the beginning of the 8 hours, what was the temperature at the end?
A. -20
B. -18
C. -14

Question

During one week in the winter, the temperature dropped an average of 2° per hour for 8 hours. If the temperature was -2°F at the beginning of the 8 hours, what was the temperature at the end?
	A.	-20
	B.	-18
	C.	-14

anonymous · Answer

I'm sure I've answered this question here before... $-2 - 8\times 2 =?$

anonymous · Answer

2 per hour, and there were 8 hours, so you do 2 times 8 = 16.
it dropped by that amount, so you do -2-16=-18