Question

The temperature at 4pm on January 30th was -10°C. By 10pm temperature has risen to +2°C. Find the temperature at 9:00pm.

Answer 1

We assume that the temperature raises at the same rate uniformly.

Rate = (2° - (-10°))/(10-4) hrs = 3/2 °C/hour.

Temperature at 9pm: T at 10pm - Rate of increase per 1 hour
= 2 ° - 3/2 = 0.5°C

Answer 2

Step-by-step explanation:

0.5 degree Celsius is the answer