contestada

in the town zoo, 3/28 of the animals are birds. of the birds, 4/15 are birds of prey. what fraction of the animals are birds of prey?

Respuesta :

let's call the animals "a" and birds "b"

b=[tex] \frac{3}{28}a [/tex]

we knot this from3/28 of the animals are birds.

and we also know that 4/15 are birds of prey.  so

p=[tex] \frac{4}{15}b [/tex]

we could substitute:

p=[tex] \frac{4*3}{15*28}[/tex]

and solve:

p=[tex] \frac{1}{35}[/tex]
and this is the answer!