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HELP!!! rithmetic and Geometric Sequences: Practice Question 2 of 5 Select the correct answer. Charlie and his friends are playing a game. They started round 1 of the game with 27 people. The number of
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Aug 22, 2022
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HELP!!!
rithmetic and Geometric Sequences: Practice
Question 2 of 5
Select the correct answer.
Charlie and his friends are playing a game. They started round 1 of the game with 27 people. The
number of people in the first five
rounds is shown in the table.
Round
Number of People
1 27
2 25
3 23
4 21
5 19
What is the explicit function that can be used to determine the number of people remaining in the nth round?
Of(n) = -2n + 27
of(n) = -2n + 29
f(n) = 2n + 27
f(n) = 2n + 29
Mathematics
middle-school
LocoMike
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of(n) = -2n + 29
1. find the difference
25-27= -2
23-25= -2
...
that’s your first part of the equation (-2n...)
2. get your first term and do the inverse function
so because it’s -2, you’ll add 2 to your first term which is 27
27+2= 29
3. -2n + 29
Evan Moran
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Aug 25, 2022
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Evan Moran
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