The temperature in Greenland on a sunny day rises 19°C from its minimum temperature to a maximum of -4°C. What was the minimum temperature on the day?

Answer 1

If the maximum temperature is -4°C and the increase is 19°C, then the minimum temperature can be found by subtracting the increase from the maximum temperature:

Minimum temperature = Maximum temperature - Increase
Minimum temperature = -4°C - 19°C
Minimum temperature = -23°C

Therefore, the minimum temperature on the sunny day in Greenland was -23°C.