At the moment a hot cake is put in a cooler, the difference between the cake's and the cooler's
temperatures is 50 Celsius. This causes the cake to cool and the temperature difference loses
value every minute.
of its
Write a function that gives the temperature difference in degrees Celsius, D(t), t minutes after the cake
was put in the cooler.
D(t) =

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

step-by-step explanation:

no solution.

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)