On December 30 2013 the temp started at 13 degree f .for next 5 hours the temp dropped 2 and1/2 degree per hours then the temp increased 4 degree what is the temp after these changes

Can somebody answers please temp started at 12 degree

12 - (5 * 2.5) + 4 =

12 - 12.5 + 4

12 - 8.5 = 3.5 degrees

To calculate the final temperature after the changes, we need to follow these steps:

1. Start with the initial temperature: 13 degrees Fahrenheit.
2. Calculate the temperature after the drop of 2 and 1/2 degrees per hour for 5 hours.

To do this, we multiply the rate of temperature drop (2.5 degrees/hour) by the number of hours (5 hours) and subtract this from the initial temperature:

New temperature = Initial temperature - (Rate of drop × Number of hours)
= 13 - (2.5 × 5)
= 13 - 12.5
= 0.5 degrees Fahrenheit.

So after the 5 hours of dropping 2 and 1/2 degrees per hour, the temperature would be 0.5 degrees Fahrenheit.

3. Finally, we need to calculate the temperature after it increases by 4 degrees.

To do this, we add the increase (4 degrees) to the temperature after the drop (0.5 degrees):

Final temperature = Temperature after drop + Increase
= 0.5 + 4
= 4.5 degrees Fahrenheit.

Therefore, the temperature after these changes would be 4.5 degrees Fahrenheit.