Question

The mean temperature for the first 4 days in January was -3°C.
The mean temperature for the first 5 days in January was -5°C.
What was the temperature on the 5th day?

Answer 1

Answer:

-5°cgvvbc FC xmcrmgglgdgjdtjgj

Answer 2

Step-by-step explanation:

mean temperature for the first 4 days = -3°C

total temperature for the first 4 days = -3°C × 4 = -12°C

mean temperature for the first 5 days = -5°C

total temperature for the first 5 days = -5°C × 5 = -25°C

temperature on the 5th day = (-25°C) - (-12°C) = -25°C + 12°C = -13°C