on a given morning the temperature was 81°F. The temperature dropped 9°F and then rose 5°F. How much does the temperature need to rise or fall to return to the initial temperature of 81°F?(1 point)
Responses
Rise 4°
Rise 4 degrees
Rise 9°
Rise 9 degrees
Fall 4°
Fall 4degree
Fall 5°
Fall 5 degrees
The temperature dropped 9°F and then rose 5°F. To return to the initial temperature of 81°F, the temperature needs to rise 4°F.
To return to the initial temperature of 81°F, the temperature needs to rise 4°F.
To determine how much the temperature needs to rise or fall to return to the initial temperature of 81°F, we need to calculate the net change in temperature.
The temperature initially dropped 9°F, resulting in a temperature of 81°F - 9°F = 72°F.
Then, the temperature rose 5°F, resulting in a temperature of 72°F + 5°F = 77°F.
To return to the initial temperature of 81°F, we need to find the difference between the current temperature (77°F) and the initial temperature (81°F):
81°F - 77°F = 4°F.
Therefore, the temperature needs to rise 4°F to return to the initial temperature of 81°F.