3 years ago

Cobalt-60 is used in the treatment of cancer. A sample contains 8 grams of Co-60 where k = 0.1308

Mathematics

2 answers:

masha68 [24]3 years ago

8 0

You need to post more information.

coldgirl [10]3 years ago

5 0

Answer:

Step-by-step explanation:

5.3

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The temperature of chicken soup is 192.7°F

As it cools, the temperature of the soup decreases 2.3°F per minute

Let the initial temperature be $T_0$

Let "t" be the time for rate of decrease

Set up an equation

Temperature = Initial temperature - decrease in temperature

Decrease in temperature = rate of decrease x time

Therefore,

$T = T_0-2.3t$

To find the temperature of soup after 25 minutes, substitute t = 25

$T = 192.7 - 2.3 (25)\\\\T = 192.7 -57.5\\\\T = 135.2$

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