The students of a middle school are selling homemade candles to raise money for a charity. The candles will be sold for $7 each.
If the
students have already raised $35 and they want to raise at least $75, which number line shows the minimum number of additional
candles they must sell?
students have already raised $35 and they want to raise at least $75, which number line shows the minimum number of additional
candles they must sell?
2 answers:
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Answer:
a(n) =
Step-by-step explanation:
The given expression is in the form of the explicit formula of a geometric sequence.
f(n) =
Where 'a' = First term of the sequence
r = common ratio
Recursive formula of a geometric sequence is,
a(n) =
a(n) =
Where,
So the recursive formula will be a(n) =
So, we know the sum of the first 17 terms is -170, thus S₁₇ = -170, and we also know the first term is 2, well
well, since the 17th term is that much, let's check what "d" is then anyway,
well, since the 17th term is that much, let's check what "d" is then anyway,