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

##### 1 Answer

Apr 2, 2017

#### 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 Fahrenheitmultiply the result by#5/9#

In your case, you must convert

#t[""^@"C" ] = 5/9 * (46^@"F" - 32)#

#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.