During a chemical reaction, the temperature in a beaker decreased every minute by the same number of degrees. The temperature was 63degreesF at 11 :30 a. m. By 11 :54 a. m., the temperature had dropped to minus12degreesF. By how many degrees did it change each minute?

The answer to your question is "The temperature drops 3.125°F each minute".

Explanation:

Data

Initial temperature = 63°F Initial time = 11:30 am

Final temperature = - 12°F Final time = 11:54 am

Process

1. - Calculate the difference of minutes

11:54 - 11:30 = 24 min

2. - Calculate the difference of temperature

63°F - (-12°F) = 63°F + 12°F = 75°F

3. - Divide the difference of temperature by the difference of time

75/24 = 3.125

4. - Conclusion

The temperature drops 3.125°F each minute.