Question

The temperature at 2pm was 22°C above zero . If it decreases at the rate of 3°C per hour until midnight . At what time would the temperature be 2°C below zero

Answer 1

Step-by-step explanation with answer:

At 2PM temperature was 22degree C

it decreases at the rate of 3degree C

so....

at 3pm = 19C

at4PM = 16C

at 5PM = 13C

at 6PM = 10C

at 7pm = 7C

at 8pm = 4C

at 9pm = 1C

at 10pm = -2C

so at 10PM the temperature will be 2degree C below 0.

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(sorry...i did not have degree sign)