beesbutterflyqueen
24.02.2021 •
Mathematics
Mrs. McEnroe's sixth-grade class has 15 students, 9 of which are boys. Which of the following describes the ratio of boys to girls in Mrs. McEnroe's class?
Group of answer choices
a.The ratio of boys to girls is 1:2 because there are 50% more boys than girls in the class.
b.The ratio of boys to girls is 3:5 because, for every 3 boys in the class, there are 5 girls.
c.The ratio of boys to girls is 3:2 because, for every 3 boys in the class, there are 2 girls.
d.The ratio of boys to girls is 60:1 because 60% of the students in the class are boys.
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Ответ:
-329
Step-by-step explanation:
1st term a1 = 3, common difference d = -4
84th term,
3+(84-1)(-4)
= -329