Question

This month, Judy has checked out 20 books from the library, and Four-fifths of them were biographies. Which expression can be used to determine the number of biographies Judy checked out?

Answer 1

`(4)/(5)` (20) = n

Let n equal the number of biographies checked out.

Explanation:

`(4)/(5)` (20) = n

n = 16

The number of biographies checked out is 16.