Question

If it costs 13 dollars for 9 books, how much does 1 book cost?

Answer 1

$1.44

Explanation:

Your ratio is 13 dollars PER 9 books.

Turn it into a fraction: 13/9

Then divide.

We get 1.444... which can be rounded to 1.44

Answer 2

1.4444444444444

Explanation:

Hope this helps