Question

An AC cool the room at the rate of 5 degrees per hours what would be the final temperature of the room after 6 hours if the initial temperature of the room is 40 degree celcius

Answer 1

SIMPLIFY AND EXPRESS THE RESULT IN POWER NOTATION WITH POSITIVE EXPONENT.

(i) (−4)

5 ÷ (−4)

8

Please solve this question

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And ur answer is 10 degree Celsius

Initial temp = 40 degree C

Temp. lowered in 1 hour = 5 degree C

                                         = (-5) degree C

Temp. lowered in 6 hours = 6 * (-5) = (-30) degree C

Final temp. = 40 degree C + (-30) degree C  =  10 degree C

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