The sales tax on a ceiling fan is $6.80 that is 6%. Let $x be the price of the fan, then $x is 100% and you can use proportion:
the ratio $6.80 to 6% is the same as
the ratio $x to 100%.
Mathematically you can write:
[tex] \dfrac{6.80}{6} =\dfrac{x}{100} [/tex].
Express x:
[tex] x=\dfrac{6.80\cdot 100}{6} =113.(3)=113.3333.... [/tex]
Answer: the marked price of the fan was $113.33
