SOLUTION: I have a math problem with a circle graph that I cannot get the correct answer every time I try. the graph is Pets owned by sixth graders 5% own birds; 5%own reptiles; 10% fish; 35

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: I have a math problem with a circle graph that I cannot get the correct answer every time I try. the graph is Pets owned by sixth graders 5% own birds; 5%own reptiles; 10% fish; 35      Log On


   



Question 838262: I have a math problem with a circle graph that I cannot get the correct answer every time I try. the graph is Pets owned by sixth graders 5% own birds; 5%own reptiles; 10% fish; 35%cats; 45% dogs. the question is if 30 sixth graders own birds, how many sixth graders were surveyed? Can you please help me.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
If you add up the percentages,
+5+%2B+5+%2B+10+%2B+35+%2B+45+=+100+ percent
That means the entire 6th grade is
accounted for
-----------------
The 30 6th graders who own birds are 5%
of the whole class
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Let +c+ = the number of 6th graders
+.05c+=+30+
+c+=+30%2F.05+
+c+=+600+
600 were surveyed