Question

At 5:00 p.m., the outside temperature was –9.2°C. By 10:00 p.m., the outside temperature had dropped 4.5°C. What was the outside temperature at 10:00 p.m.?

Answer 1

It dropped by 4.5 means that we have to subtract 4.5 from 9.2

9.2 - 4.5 = 4.7 °C

So 4.7 °C is your answer :D