please give me answer
Answers
Step-by-step explanation:
Solution :-
At 12 noon, the temperature = 14° C above zero
The temperature is decreasing at 2° C per hour
8° C below zero = - 6° C
So, total fall in temperature from 14° C to 0° C and from 0° C to - 6° C = 20° C
Since the temperature falls 2° C in every one hour.
Therefore, to decrease 20° C, time taken = 20/2
= 10 hours
Present time is 12 noon so, the time when the temperature is - 6° C
= 12 noon + 10hours
So, The time at which the temperature will be - 6° C = 10 PM
At 9 PM, the temperature is - 6° C, the temperature at 12 midnight will be =
(- 6° C) + (- 2° C × 3 hours)
= (- 6° C) + (- 6° C)
= - 12° C
So, at 12 midnight the temperature will be - 12° C.
Answer.
Answer:
If temperature deacese at rate of 2 degrees per hour
Asked for 6 degrees below zero
That is = - 6 degrees
Total decrease in temperature
= from 14 degrees to - 6 degrees
=20 degrees
2 degrees ====> 1hour
20 degrees ====> 10 hours
So 12 noon +10 hours
10 pm
10 pm is your 1st answer
At midnight
Time = 12 am
Increase in time period
= 12 noon to 12 midnight
=12 hours
For 1 hour=====> 2 degrees decreases
12 hours ======>24 degrees decreases
Midnight temp = Present temperature - 24 degrees
14 degrees - 24 degrees
-10 degrees