Question

At 8:00 a.m., the temperature at an Arctic observatory was -15°F. By 2:00 p.m., the temperature had risen

8 degrees. Over the next five hours, the temperature dropped 4 degrees.
What was the temperature at 7:00p.m.?
-11°F
-27°F
-19°F
-3°F

Answer 1

the temperature at 7:00 p.m. was -11°F.

Explanation:

At 2:00 p.m., the temperature was -15°F + 8°F = -7°F.

Over the next 5 hours, the temperature dropped 4 degrees, so at 7:00 p.m., the temperature was:

-7°F - 4°F = -11°F.

Therefore, the temperature at 7:00 p.m. was -11°F.