How to use the book sale, Miss Chen bought a box of 20 assorted books for $40. What was the cost per book?

To find the cost per book, divide the total cost by the number of books:

Cost per book = Total cost / Number of books

In this case, Miss Chen bought a box of 20 assorted books for $40.

Cost per book = $40 / 20

So, the cost per book is $2.

To calculate the cost per book, you need to divide the total cost by the number of books.

Step 1: Determine the total cost.
Miss Chen bought a box of 20 assorted books for $40.

Step 2: Divide the total cost by the number of books.
Total cost = $40
Number of books = 20

Cost per book = Total cost / Number of books

Cost per book = $40 / 20

Step 3: Simplify the division.
Cost per book = $2

Therefore, the cost per book is $2.

To find the cost per book, we need to divide the total cost of the box of books by the number of books in the box. In this case, Miss Chen bought a box of 20 assorted books for $40.

So, to find the cost per book, we will divide $40 by the total number of books, which is 20.

Cost per book = Total cost / Number of books

Plugging in the values:
Cost per book = $40 / 20

Now, let's calculate the answer:

Cost per book = $2

Therefore, the cost per book is $2.