A college bookstore marks up the price that it pays the publisher for a book by 40 %. If the selling price of a book is $ 81.00 comma how much did the bookstore pay for this book?

Answer:the college bookstore paid

$57.86 for the book.

Step-by-step explanation:

Let x represent the price that the college bookstore paid the publisher to get the book.

The college bookstore marks up the price by 40%. It means that the value of the mark up would be. 40/100 * x = 0.4 * x = 0.4x

Therefore, the selling price of the book at the college bookstore would be

x + 0.4x = 1.4x

If the selling price of a book is $ 81.00, it means that

1.4x = 81

x = 81/1.4 = $57.86

32.40

Step-by-step explanation:

81 x 40% = 48.60

81. - 48.60 = 32.40