Question

antifreeze is a substance that lowers the freezing point of water. automobiles that operate in a cold climate typically contain antifreeze solutions to prevent water from freezing and causing damage.
the freezing point of a mixture that consists of 70% antifreeze and 30% water is -84°f. convert this temperature to °c.
round to one decimal place.
provide your answer below:

Explanation:

Step1: Use the conversion formula

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

Step2: Substitute the value of $F$

Given $F=-84$, substitute it into the formula: $C=\frac{5}{9}(-84 - 32)$.

Step3: Calculate the value inside the parentheses

$-84-32=-116$. So now we have $C=\frac{5}{9}\times(-116)$.

Step4: Perform the multiplication

$\frac{5\times(-116)}{9}=\frac{-580}{9}\approx - 64.4$.

Answer:

$-64.4$