Question

A college bookstore marks up the price that it pays the publisher for a book by 35%.  If the selling price of a book is $54.00, how much did the bookstore pay for this​ book?

Answer 1

The answer is $18.90 because 35% of 54.00 is $18.90

Answer 2

$40.

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.

`x+(35)/(100)x=x+0.35x=1.35x`

We are told that the selling price of a book is $54.00. We can represent this information in an equation as:

`1.35x=54.00`

`(1.35x)/(1.35)=(54.00)/(1.35)`

`x=40`

Therefore, the bookstore paid $40 for the book.