Question

if it is 40 degrees celsius, what is the temperature in fahrenheit?
a. 40 degrees
b. 104 degrees
c. 54 degrees
d. 327 degrees

Explanation:

Step1: Recall conversion formula

The formula to convert Celsius ($C$) to Fahrenheit ($F$) is $F=\frac{9}{5}C + 32$.

Step2: Substitute given value

Given $C = 40$, substitute into the formula: $F=\frac{9}{5}\times40+32$.
First, calculate $\frac{9}{5}\times40$: $\frac{9}{5}\times40=9\times8 = 72$.
Then, $F=72 + 32$.

Step3: Calculate final result

$F=104$.

Answer:

104 degrees (Option B)