The number of ducks to geese in Miller's Pond last year was 2:3. This year the ratio of ducks to geese is 5:9. The number of geese stayed the same. Did the number of ducks increase or decrease? Explain

No decreased-

Set up equaivalent ratioo. It started out 2 duck to every 3 geese, continue the pattern and see for a change

ducks 2 4 6

geese 3 6 9

but now its 5; 9 instead of 6 to 9, therefore the number of ducks decreased