The temperature in the morning was -4 F. At night the temperature dropped to -12.8 F. How can the temperature drop from the morning to the night be represented?
A. 16.8 F
B. 8.4 F
C. -8.8 F
D. -16.8 F
The answer is C. Since the first number is negative and the number continues to drop (indicating the change in temperature is a negative change), it cannot be A or B. -4 + x = -12.8; add 4 to both sides and you have x = -8.8
