Question

class 7th...
Integers chapter., answer this​

Answer 1

Answer:

Decrease in temperature after 1 hour = 5°C

Decrease in temperature after 10 hours = 50°C

Initial temperature = 40°C

Final temperature after 10 hours = 40°C-50°C=-10°C

Answer 2

Answer:

-10 degrees

Step-by-step explanation:

let us take lowered temperature as negative ,

initial temperature = 40 degree

change in temperature for hour = -5 degrees

change in temperature after 10 hours= -5 * 10 =-50 degrees C

the room temperature after 10 hours of freezing point = 40° C+(- 50°)= -10 °C

hope this helps you