Mary had 199 dollars to spend on 8 books. After buying them she had 15 dollars. How much did each book cost ?

We have been given that Mary had 199 dollars to spend on 8 books. After buying them she had 15 dollars. We are asked to find the cost of each book.

First of all, we will subtract 15 from 199 to find amount spent on 8 books.

Now we will divide amount spent on 8 books by 8 to find cost of each book.

Therefore, the cost of each book is $23.

15 units use socratic

step-by-step explanation: 15 units