Respuesta :
Answer:
$40.
Step-by-step explanation:
Let x be the original price of book.
We have been given that the a college bookstore marks up the price that it pays the publisher for a book by 35%.
The selling price of a book at college bookstore would be x plus 35% of x.
[tex]x+\frac{35}{100}x=x+0.35x=1.35x[/tex]
We are told that the selling price of a book is $54.00. We can represent this information in an equation as:
[tex]1.35x=54.00[/tex]
[tex]\frac{1.35x}{1.35}=\frac{54.00}{1.35}[/tex]
[tex]x=40[/tex]
Therefore, the bookstore paid $40 for the book.