2. there is only one temperature where the ce...
2. there is only one temperature where the celsius and fahrenheit thermometers will read the same and no conversions need to be made. what is it? -40 degrees 0 degrees -25 degrees 25 degrees
Answer
# Explanation:
## Step1: Recall conversion formula
The conversion formula from Celsius ($C$) to Fahrenheit ($F$) is $F=\frac{9}{5}C + 32$. We want to find when $F = C$.
## Step2: Substitute and solve
Substitute $F = C$ into the formula: $C=\frac{9}{5}C+32$.
First, move the $C$ - terms to one side: $C-\frac{9}{5}C=32$.
Combine like - terms: $\frac{5C - 9C}{5}=32$, so $-\frac{4C}{5}=32$.
Multiply both sides by $-\frac{5}{4}$: $C = 32\times(-\frac{5}{4})=-40$.
# Answer:
A. -40 degrees