SOLUTION: Suppose a school had 600 students. Math teachers gave A's to 20% of the students.
English teachers gave A's to 15% of the students. 8% received A's in both math and english. Wh
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Question 264803: Suppose a school had 600 students. Math teachers gave A's to 20% of the students.
English teachers gave A's to 15% of the students. 8% received A's in both math and english. What percent received an A in at least one of the 2 subjects? How many students received an A in at least one of the two subjects?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Suppose a school had 600 students. Math teachers gave A's to 20% of the students.
English teachers gave A's to 15% of the students. 8% received A's in both math and english. What percent received an A in at least one of the 2 subjects? How many students received an A in at least one of the two subjects?
:
.20(600) = 120 got an A in Math
.15(600) = 90 got an A in Eng
.08(600) = 48 got an A in both
then
120 - 48 = 72 got an A in Math only
90 - 48 = 42, got an A in Eng only
---------------------------------------
total of 114, got an A in one or the other (but not both)
:
"What percent received an A in at least one of the 2 subjects?"
114 + 48 = 162 got at least one A
* 100 = 27% got at least one A
:
"How many students received an A in at least one of the two subjects?"
162 students
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