fatboicroi
04.04.2020 •
Mathematics
G 7. In another study of these cities, customers were sampled by age. The totals for the cities and ages are given. a. What is the expected frequency in the Age 21-30 / Kingston cell? A. 12 Your answer is not correct.B. 6 This is the correct answer.C. 100 D. 18 b. What is the expected frequency in the Age 51-60 WINDSOR cell? A. 14 Your answer is correct.B. 35 C. 10 D. 12
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Ответ:
Step-by-step explanation:
3x - 2y = –9
3x−2y+2y=−9+2y
3x=2y−9/3x^3
=2y−9/3
x=2/3y−3
4x + 3y = 22
4x+3y+−3y=22+−3y
4x=−3y+22
4x4
=−3y+22/4
x=−3/4y+11/2