SOLUTION: The Wildlife Federation surveyed 220 San Diego residents. The results are as follows: 32 had a membership to the Birch Aquarium 57 had a membership to the San Diego Zoo 21 had b

Algebra ->  Formulas -> SOLUTION: The Wildlife Federation surveyed 220 San Diego residents. The results are as follows: 32 had a membership to the Birch Aquarium 57 had a membership to the San Diego Zoo 21 had b      Log On


   



Question 472851: The Wildlife Federation surveyed 220 San Diego residents. The results are as follows:
32 had a membership to the Birch Aquarium
57 had a membership to the San Diego Zoo
21 had both
Construct a Venn diagram answering the following questions:
i. How many had only a zoo membership?
ii. How many had only an aquarium membership?
iii. How many belonged to either one or the other or both?
iv. How many belonged to neither?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
The Wildlife Federation surveyed 220 San Diego residents. The results are as follows:
32 had a membership to the Birch Aquarium
57 had a membership to the San Diego Zoo
21 had both

i. How many had only a zoo membership? 57-21 = 36
ii. How many had only an aquarium membership? 32-21 = 11
iii. How many belonged to either one or the other or both? 36 + 11 + 21 = 68
iv. How many belonged to neither? 220 - 68 = 152