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3 years ago

A can of soda is placed inside a cooler. As the soda cools, its temperature T(x)

Mathematics

1 answer:

solniwko [45]3 years ago

8 0

Answer:

The initial temperature of the soda is 16°C

The temperature of the soda after 18 minutes is -12°C

Step-by-step explanation:

T(x) = -12+28e^-0.38x

When x = 0

T(0) = -12+28e^-0.38(0) = -12+28e^0 = -12+28(1) = -12+28 = 16°C

Initial temperature of the soda is 16°C

When x = 18

T(18) = -12+28e^-0.38(18) = -12+28e^-6.84 = -12+28(0.0011) = -12+0.0308 = -11.9692°C = -12°C (to the nearest degree)

The temperature of the soda after 18 minutes is -12°C

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$x$

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Decrease by 20 means :

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Equals to 82 means :

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What is that number ?

x asked so we must solve the above equation for x.

Let's do it....

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