Undrea43
24.02.2020 •
Mathematics
12 if k is a nonzero constant, what is the slope
of the line containing the points (k, 2K) and
(3k, k)?
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Ответ:
a) 26 students
b) 17 students
c) 74 students
Step-by-step explanation:
We can make a Venn diagram and make sense a lot of things
a) The number of students who takes French but not German = the number of students who takes French - the number of students who takes French and German = 65 - 20 = 45 students
The number of students who takes French Only = The number of students who takes French but not German - the number of students who take French and Spanish + the number of students who take all 3 languages = 45 - 22 + 3 = 26 students.
b) The number of students who take French AND German but not Spanish = the number of students who takes French and German - the number of students who take all 3 languages = 20 - 3 = 17 students
c) The number of students who take French OR German but not Spanish = the number of students who take French Only + the number of students who take German - the number of students who take German and Spanish = 26 + 60 - 12 = 74 students.