6. the outside temperature at 4:00 pm was 8 degrees celsius. the temperature decreased 2.5°c each hour until…

6. the outside temperature at 4:00 pm was 8 degrees celsius. the temperature decreased 2.5°c each hour until 10:00 pm. what was the temperature at 10:00 pm?

6. the outside temperature at 4:00 pm was 8 degrees celsius. the temperature decreased 2.5°c each hour until 10:00 pm. what was the temperature at 10:00 pm?

Answer

Explanation:

Step1: Calculate the number of hours passed

From 4:00 PM to 10:00 PM, the number of hours passed is (10 - 4=6) hours.

Step2: Calculate the total temperature decrease

Since the temperature decreases (2.5^{\circ}C) each hour, for 6 hours, the total decrease is (2.5\times6 = 15^{\circ}C).

Step3: Calculate the final temperature

The initial temperature at 4:00 PM was (8^{\circ}C). After a decrease of (15^{\circ}C), the temperature at 10:00 PM is (8-15=-7^{\circ}C).

Answer:

(-7^{\circ}C)