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Math10
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Homework Statement
An object is placed in a room where the temperature is 20 degrees Celsius. The temperature of the object drops by 5 degrees Celsius in 4 minutes and by 7 degrees Celsius in 8 minutes. What was the temperature of the object when it was initially placed in the room?
Homework Equations
Newton's law of cooling: T(t)=Ta+(To-Ta)e^(-kt)
The Attempt at a Solution
T(t)=Ta+(To-Ta)e^(-kt)
I know that I need to solve for To, which is the initial temperature but I don't know what to do.