Let's break down the temperature changes step by step:
- The initial temperature is 63° F.
- The temperature drops by 10° F:
\( 63° F - 10° F = 53° F \) - Then the temperature increases by 6° F:
\( 53° F + 6° F = 59° F \)
Now, we need to determine how much the temperature needs to rise to return to the initial temperature of 63° F:
Initial temperature: 63° F
Current temperature: 59° F
To find the difference:
\( 63° F - 59° F = 4° F \)
Thus, the temperature needs to rise by 4° F to return to the initial temperature of 63° F.