Fot an experiment, a liquid is kept in cold storage at a temperature of 20 degrees Fahrenheit(°F). The liquid is removed from cold storage and is warmed at a constant rate of 3°F per hour. Which of the following represents the temperature of the liquid, in degrees Celsius(°C), t hours after it has been removed from cold storage ?
The sample STARTS at 20 degrees so the temperature is 20 + ?
Every hour it warms up an ADDITIONAL 3 degrees so the temperature after 't' hours will be INCREASED 3 x t
It STARTED at 20 degrees so add both of the terms together to get the temperature of the sample 20 + (3 x t)
or 20 + 3t Rewritten : 3t + 20
Now I re-read the question: it asks for Celcius
Convert to Celcius 5/9 (3t +20) -32 )
15/9t - 60/9
5/3t - 20/3
So YOU were RIGHT ! I was WRONG....sorry....I misread the question!!!
Yea you right but you get it on °F but i need on °C so i put it into °C=5/9(°F-32) and get (A)