anonymous
  • anonymous
The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 90 said they had taken physics, 138 said they had taken chemistry and 45 said they had taken both. Thirty-two said they had taken neither. How many recent high school grads were surveyed? Show your work
Mathematics
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
90 physics 138 chemisty 45 both 32- neither
anonymous
  • anonymous
i got 146
anonymous
  • anonymous
how please

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anonymous
  • anonymous
90+138= 228 228/2=114 (the 2 is because 45 took both) and 114+32 ( because 32 took neither) so 146
anonymous
  • anonymous
thanks

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