Question

the temperature at 12 noon was 10 degrée celcious above zero if it decrease at the rate of 2degree celcious per hour until midnight at what time would the temperature be 8 degree celcious below zero what would be the temperature at midnight​

Answer 1

Answer:

9 pm, - 14 ℃

Step-by-step explanation:

The temperature at 12 noon is 10 ℃.

The total change in temperature between 10 ℃ and -8 ℃ is 10 - ( - 8 ) = 18 ℃

Thus, total time required for this change = 18 / 2 = 9 hours

Therefore the time at that instant will be 9 hours after noon, which is 9 pm.

At midnight, temperature will be 6 ℃ lesser than the temperature at 9 pm.

Hence, temperature at midnight:

- 8 - 6 = - 14 ℃