Question

A refrigeration system at your company uses temperature sensors fixed to read Celsius (°C) values, but the system operators in your control room understand only the Fahrenheit scale. You have been asked to make a Fahrenheit (°F) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°C. What Fahrenheit value should you write on the label

Answer 1

Answer: We should write $14{^\circ}$ on the label.

Step-by-step explanation:

To convert Celsius (°C) value in Fahrenheit (°F)  we use the following formula as:-

$F=\frac{9}{5}C+32$

Thus, to convert -10°C value in Fahrenheit (°F)  we substitute the -10 at the place of C in the above formula, we get

$F=\frac{9}{5}(-10)+32\\\Rightarrow\ F=9(-2)+32\\\Rightarrow\ F=-18+32\\\Rightarrow\ F=14$

We should write $14{^\circ}$ on the label.