Math help

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If 20 3rd graders owned birds, how many third graders were surveyed?


Reptiles 5%
Birds 5%
Fish 10%
Cats 35%
Dogs 45%

I did 5% of 30 = .05 x 30 = 1.5
30/1.5 = 20 third graders


BUT I am thinking I am doing something wrong? Where did I go wrong?
Should it be 30/.05 = 600 students were surveyed?

I want to understand my steps on where I messed up? Could you show me?

  • Math help ?? -

    Oops I meant 30 third graders.

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