Question

The temparature at 12 noon was 10 degree celsius above zero. If it decreases at the rate of 2 degree celsius per hour until midnight,at what time would the temparature be 8 degree celsius below zero? what would be the temparature at midnight?​

Answer 1

Answer:

answer

Step-by-step explanation:

temperature at 12 noon was 10 degree Celsius about zero if @ the two degree Celsius by atom and at what temperature will

Answer 2

[HeY Mate]

$\huge\bold\red{Answer}$

⇒At 12 noon, the temperature = 10° C above zero

The temperature is decreasing at 2° C per hour

8° C below zero = - 8° C

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⇒So, total fall in temperature from 10° C to 0° C and from 0° C to - 8° C = 18° C

( the temperature falls 2° C in every one hour.)

Then, to decrease 18° C, time taken = 18/2= 9 hrs)

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Present time is 12 noon so, the time when the temperature is - 8° C = 12 noon + 9 hours

So, The time at which the temperature will be - 8° C = 9 PM

⇒At 9 PM, the temperature is - 8°C,

the temperature at 12 midnight will be

= (- 8° C) + (- 2° C × 3 hours)

= (- 8° C) + (- 6° C)

= - 14° C

So, at 12 midnight the temperature will be - 14°C.

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