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Kareem heats a beaker of water to a boil. Then he records that the water temperature decreases from 100°C to 19°C in 5 2/5 minutes. What was the change in temperature each minute? Enter your answer in the box.

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samuelonum1

Answer:

Rate= 15°C/min

Step-by-step explanation:

In this problem, we are expected to solve for the rate of change of the temperature per minute.

Given data

initial temperature= 100°C

final temperature=  19°C

Time taken  for the change to occur= 5 2/5 minutes to proper fraction we have 27/5 min

Now we can calculate the change in temperature as = 100-19= 81°C

therefore the rate of change in temperature per minute is

rate= 81/27/5

Take the reciprocal of the denominator we have

rate= (81*5)/27

rate= 405/27

rate= 15°C/min

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