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Mathematics
OpenStudy (anonymous):

The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 32 said they had taken physics, 51 said they had taken chemistry and 15 said they had taken both. Ten said they had taken neither. How many recent high school grads were surveyed? Show your work.

OpenStudy (anonymous):

(32+51) - 15 = A A + 10 = final ans

OpenStudy (a_clan):

78

OpenStudy (anonymous):

# taken one + # taken the other - # taken both = # who took any Total = # who took any + #number who didn't take any

OpenStudy (anonymous):

Could probably use some parens there..

OpenStudy (anonymous):

Total = (# who took any) + (# who didn't take any) (# who took any) = (# taken one) + (# taken the other) - (# taken both)

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