# Xalatan should be stored in a temperature not to exceed 46 degrees Fahrenheit. What is this temperature in Centigrade?

Apr 2, 2017

${7.8}^{\circ} \text{C}$

#### Explanation:

The Fahrenheit and Celsius temperature scales are connected by the equation

color(blue)(ul(color(black)(t[""^@"C"] = 5/9 * (t[""^@"F"] - 32))))

This tells you that in order to convert degrees Fahrenheit to degrees Celsius, you must

• subtract $32$ from the temperature in degrees Fahrenheit
• multiply the result by $\frac{5}{9}$

In your case, you must convert ${46}^{\circ} \text{F}$ to degrees Celsius, so simply plug this value into the equation and solve.

$t \left[\text{^@"C" ] = 5/9 * (46^@"F} - 32\right)$

color(darkgreen)(ul(color(black)(t[""^@"C"] = 7.8^@"C")))

The answer is rounded to two sig figs, the number os fig figs you have for the temperature in degrees Fahrenheit.