On a given morning, the temperature was 71℉. The temperature dropped 5℉ and then rose 8℉. How much does the temperature need to rise or fall to return to the initial temperature of 71℉?(1 point)
Responses
Fall 8℉
Fall 8 ℉
Rise 8℉
Rise 8 ℉
Fall 3℉
Fall 3 ℉
Fall 3℉
Determine which of these illustrates two quantities that combine to make 0.(1 point)
Responses
Latanya lost ten pounds and then gained six pounds.
Latanya lost ten pounds and then gained six pounds.
A business's profit if its income is more than its expenses.
A business's profit if its income is more than its expenses.
It is twenty degrees below zero and then the temperature rises ten degrees.
It is twenty degrees below zero and then the temperature rises ten degrees.
A business's profit if its income is more than its expenses.
To return to the initial temperature of 71℉, we need to consider the changes in temperature that have already occurred.
The temperature initially dropped 5℉ and then rose 8℉.
To find out how much the temperature needs to rise or fall to return to the initial temperature, we can calculate the net change in temperature.
The total change in temperature is the sum of the individual changes.
Total change = drop + rise = -5℉ + 8℉ = +3℉
To return to the initial temperature, we need to reverse the net change.
Since the net change is +3℉, the temperature needs to fall by 3℉ to return to the initial temperature of 71℉.
Therefore, the temperature needs to fall 3℉ to return to the initial temperature of 71℉.
To find out how much the temperature needs to rise or fall to return to the initial temperature of 71°F, we can follow these steps:
1. Start with the initial temperature of 71°F.
2. The temperature then dropped 5°F, so subtract 5°F from the initial temperature: 71°F - 5°F = 66°F.
3. The temperature then rose 8°F, so add 8°F to the current temperature: 66°F + 8°F = 74°F.
Therefore, the temperature needs to rise 3°F to return to the initial temperature of 71°F.
So the correct answer is: Rise 3°F or Rise 3 ℉.