The difference between the two measurements is -26 - (-17) = -26 + 17 = -9 °C.
Therefore, the correct answer is B. 9 °C.
As part of an experiment in the science lab, a thermometer was inserted in a solution in order to measure the temperature over time. At 9:15 a.m. the temperature was –17 °C, and at 11:30 a.m. it was –26 °C.
What is the difference between these two measurements?
A. 8 °C
B. 9 °C
C. 11 °C
D. 43 °C
1 answer