Question

On January 22 in 1943, the town of Spearfish, South Dakota, set the record for the world’s fastest temperature change.

At 7:30 a.m., the temperature was -4°F.
By 7:32 a.m., the temperature was 45°F.
By 9:00 a.m. the same day, the temperature was 54 °F.
By 9:27 a.m., the temperature was -4 °F.
How many degrees did the temperature change each minute from 9:00 to 9:27?

Answer 1

The temperature changed by -3.22 °F per minute from 9:00 to 9:27.

Step-by-step explanation:

To find the temperature change per minute from 9:00 to 9:27, we need to subtract the temperatures and divide by the time difference. The temperature at 9:00 was 54 °F, and at 9:27 it was -4 °F. So, the change in temperature is: -4 °F - 54 °F = -58 °F. The time difference is 27 minutes - 9 minutes = 18 minutes. Therefore, the temperature changed by -58 °F / 18 minutes = -3.22 °F per minute.