Respuesta :

Artice
600
30 is .05 of 100
30/.05=600
altavistard
5% of the whole comes out to 30.  Then 0.05n = 30, and n = 30 / 0.05, or
                                                                                           n = 600

600 sixth graders were surveyed.  

5% of them, or 0.05(600), or 30, own birds.