Question

a certain freezing process requires that room temperature be lower from 40 digree celcius at the rate of 5 digree celcius every hour what will be the room temperature ten hours after the progress begin​

Answer 1

Let present temp =y
Original temperature =40
Reduction of temperature hourly 5
Also let no hours be x
So y= 40-5x
When x=10
Y= 40-50=-10 degrees Celsius