SOLUTION: The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 68 said they had taken physics, 108 said

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Question 387263: The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 68 said they had taken physics, 108 said they had taken chemistry and 12 said they had taken both. Nine said they had taken neither. How many recent high school grads were surveyed? Show your work.

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Answer by edjones(8007) About Me  (Show Source):
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56 physics only
12 both
96 chem only
09 neither
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173 Number surveyed
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Ed