Question

Please explain to me step by step the following questions:

During Christmas a bookstore sold 72 books. If the ratio of books to bookmarks sold was 9:2, how many book marks did the store sell.

Answer 1

Step-by-step explanation: ok so they sold 9 book marks for every 2 books right?

so you would put 72 over nine like a fraction, then you would put 2 over X like another fraction.

Then cross multiply. 72*x=72x

9*2=18

72 divided by 18 = 40

I hope this helps