Question

To conduct an expriment, it is required to decrease the temperature from 35° at the rate of 5° per hour. what will be the temperature 9 hours after the process begins?​

Answer 1

$\bold \red{answer}$

The initial temperature is 35 °C

From given, we have, temperature decreases at the rate of 5 c per hour.

After 1 hour the temperature becomes (35-5) = 30 °C

After 2 hour the temperature becomes (30-5) = 25 °C

After 3 hour the temperature becomes (35-5) = 20 °C

After 4 hour the temperature becomes (20-5) = 15 °C

After 5 hour the temperature becomes (15-5) = 10 °C

After 6 hour the temperature becomes (10 - 5) = 5 °C

After 7 hour the temperature becomes (5-5) = 0 °C

After 8 hour the temperature becomes (0 -5) = -5 °C

After 9 hours the temperature becomes (-5 -5)=-10°C.