Question

use a ratio box to solve this problem. There were 144 books about mammals in the library. If the ratio of books about mammals to books about plants was 9 to 8, how many books about plants were in the library?

Answer 1

There were 128 books about plants in the library

Explanation:

First we look at the amount of books about mammals, which is 144.

Next we divide 144 by 9, since the ratio of books was 9 for mammals and 8 for plants. 144 / 9 = 16

now we multiply 16 by 8 since the ratio for plants was 8.

16 * 8 = 128

I hope this helps <3