Question

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

Answer 1

$༺ \: \huge\mathfrak\pink{Answer} \: ༻$

Answer 2

Answer:

9 pm

Step-by-step explanation:

Since,

temperature at 12 noon= 10 degree celsius,

rate of decrease= 2 degrees/hr,

time at which the temperature will be 0 degree celsius= 10-10 (5x(-2))

= 2x5 hr

= 12 +5

= 5 pm

ATQ,

we need temperature 8 degrees below 0 degree celsius,

hence,

-8 degree celsius= -2*4

hence,

4 hours from 5 pm will be 5+4= 9 pm

Hence,

9 pm will be the time when the temperature will be 8 degrees below 0 degrees celsius

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