Solve the following word problem. The air temperature at 9 a.m. is −5.8 degrees Celsius. The air temperature at noon is −1.6 degrees Celsius. What is the change in the temperature during these three hours? Write and solve an equation to show your answer. Then explain what your answer mean
To find the change in temperature during these three hours, we need to subtract the air temperature at 9 a.m. from the air temperature at noon.
Change in Temperature = Temperature at Noon - Temperature at 9 a.m.
Change in Temperature = (-1.6 degrees C) - (-5.8 degrees C)
To subtract a negative number, we can rewrite this equation as:
Change in Temperature = -1.6 degrees C + 5.8 degrees C
Change in Temperature = 4.2 degrees Celsius.
Therefore, the change in temperature during these three hours is 4.2 degrees Celsius, showing that the temperature increased by 4.2 degrees.
To find the change in temperature during these three hours, we need to subtract the initial temperature from the final temperature.
Initial temperature at 9 a.m. = -5.8 degrees Celsius
Final temperature at noon = -1.6 degrees Celsius
The equation to find the change in temperature is:
Change in temperature = Final temperature - Initial temperature
Substituting the values into the equation:
Change in temperature = (-1.6) - (-5.8)
Change in temperature = -1.6 + 5.8
Change in temperature = 4.2 degrees Celsius
Therefore, the change in temperature during these three hours is 4.2 degrees Celsius.
This answer means that the temperature increased by 4.2 degrees Celsius from 9 a.m. to noon.