volume_mute
Temperature Drop Per Hour
publish date: 2026/05/07 20:14:22.767061 UTC
volume_mute
During a five-hour period, the temperature steadily dropped 20°F.
By how many degrees did the temperature change each hour? Use a signed number.
Correct Answer
-4°F
Explanation
Total drop as a signed number: \(-20\)°F. Divided equally over 5 hours:
\[ -20 \div 5 = -4 \]
Unlike signs → negative. The temperature changed by −4°F each hour. Check: \(-4 \times 5 = -20\) ✓
Reference
go-math-science.com