Question

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

Answer 1

90 physics
138 chemisty
45 both
32- neither

Answer 2

i got 146

Answer 3

how please

Answer 4

90+138= 228

228/2=114 (the 2 is because 45 took both)

and 114+32 ( because 32 took neither)

so 146

Answer 5

thanks