Question

2. A weather station on the top of a mountain reports that the temperature is currently

0°C and has been falling at a constant rate of 3°C per hour. Find each temperature.
Explain or show your reasoning.
b. What was the temperature:
a. If it continues fall at this rate, what will
the temperature be:
i. in 2 hours?
i. 1 hour ago?
ii. 3 hours ago?
iii. 4.5 hours ago?
ii. in 5 hours?
iii. in half an hour?

Answer 1

If the temperature continues to fall at a rate of change of 3degrees Celsius, Every hour the temperature will decrease by 3 degrees. So 2 hours later the temperature will be -6 degrees Celsius.
1 hour ago the temperature was 3 degrees C.
3 hours ago the temperature was 9 degrees C.
4.5 hours ago the temperature was 13.5(3x4.5) degrees C.
In 5 hours the temperature will be -15 degrees C.
In half an hour, the temperature will be -1.5 degrees Celsius.