The variable t represents the temperature at 6 p.m.


Which equation would best model the word problem below?


The temperature at the summit of Mt. Washington dropped 19°F between 6 p.m. and 10 p.m. The temperature at 10 p.m. was –12°F. What was the temperature at 6 p.m.?


A.

12 – 19 = t


B.

19 + 12 = t


C.

t – 19 = –12


D.

19 – t = –12