AM-410

Exponential and logarithmic models

A Math · Secondary 3 · Medium · Exponential and logarithmic models

A bowl of tea is heated to 85

^\circ

C and cools according to

T = 25 + 60e^{-0.4t}

, where

T

is the temperature in

^\circ

C and

t

is the time in minutes after removal from the heater. Find the temperature of the tea 2 minutes after removal, correct to 1 decimal place.

Loading problem…