Question

the temperature at 12 noon was 10°C above zero.if it decreases at the rate of 2°C per hour untill midnight ,at what time would the temperature be 8°C below zero.?(need steps)​

Answer 1

Answer:

9.00 P. M.

Step-by-step explanation:

8 degree centrigrade below zero is -8

total change in temperature is 10-(-8) =18 degree

so, it will take 9 hours for that change.

the time would be 9 pm

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Answer 2

At 12 noon the temperature was 10 °C

Decrease rate is 2°C /hr

At 10 midnight the temperature will be -10°C

Time to which temperature will be -8°C

=9pm

therefore

at 8

9pm the temperature will be 8°C below zero.