Final answer:
Juan will need 10 boxes to pack 50 books, as each box holds 5 books, and 50 divided by 5 equals 10.
Step-by-step explanation:
The question asks how many boxes Juan will need to pack 50 books if each box holds 5 books. To find the answer, we can use simple division. We divide the total number of books by the number of books each box can hold:
50 books ÷ 5 books per box = 10 boxes
So, Juan will need 10 boxes to pack 50 books.