The table shows the temperatures of four cities at 11 a.m. and the changes in these temperatures in the next three hours. Which city is the coldest at 2 p.m.?
Temperature at 11 a.m. (°C) Change (°C) at 2 p.m.
City P - 9 8 degrees warmer
City Q 7 7 degrees colder
City R - 3 3 degrees warmer
City S 4 6 degrees colder
A. City P
B. City 2
C. City R
D. City S
To find the temperature at 2 p.m., we need to add the change in temperature to the temperature at 11 a.m.
For City P: -9 + 8 = -1
For City Q: 7 - 7 = 0
For City R: -3 + 3 = 0
For City S: 4 - 6 = -2
The coldest city at 2 p.m. is City S with a temperature of -2°C. Therefore, the correct answer is D. City S.