Answer:

Step-by-step explanation:

Simplify:

Move 5c to the other side:

Divide bother sides with AC:

Simplify:

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The value is 80 because 8 is in the tens place.
Answer:
dT/dt = k(T-75)
Step-by-step explanation:
dT/dt = the rate of change of the egg's temperature T with respect to time t
k = constant
(T-75) = difference between the egg's temperature and the room temperature 75 degree