Ratio of books of copies it's. shelf is 2:3 if there are 18 books then the number of copies will be​

answer 10.8

Step-by-step explanation:

let the book in shelf is 2x

then the copies in shelf is 3x

2x+3x equal to 18

5x equal to 18

x equal to 18/5

x equal to 3.6

number of copies equal to 3x

equal to 3(3.6)

equal to 10.8

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half

9 x 8 divided by (5-3)=36