Question

5. The temperature at 12 noon was 10°C above zero. If it decreases at the rate of 2°C
per hour until midnight, at what time would the temperature be 8°C below zero?
What would be the
temperature at mid-night?​

Answer 1

Answer:

Change in temperature = 10 - ( -8 ) = 18°C. Rate of decrease = 2° per hour. Time = 18 / 2 = 9 hours. So, the time at which temperature goes 8°C below 0 is 9:00 PM.

Step-by-step explanation:

Answer 2

Answer:

-14

Step-by-step explanation:

12 noon=10. degrees celsius

13 = 8

14 =6

15 =4

16 =2

17 =0

18 =-2

19 =-4

20 =-6

21 =-8

22 =-10

23 =-12

0 =-14