The formula $K=C+273.15$ converts temperatures from Celsius $C$ to Kelvin $K$ . a. Convert 200 degrees Celsius to Kelvin.

C

=

K

−

273

Step-by-step explanation: To rearrange ths formula to calculate Celsius temperature you just have to subtract

273

from both sides:

K

=

C

+

273

After subtraction:

K

−

273

=

C

Now you can just change sides to leave the unknown (

C

) on left side::

C

=

K

−

273

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

so, converting firstly the mixed fractions to improper fractions and then "adding".