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3 years ago

What’s the proportion for this?

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

6 0

$\frac{15}{30}=\frac{18}{x}\\\frac{1}{2}=\frac{18}{x}\\x=2\cdot18\\x=36$

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Answer:

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Ludmilka [50]

Let me use Python to find the answers

Program.

$\tt import\:statistics \:as\:stats$

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A n =−1+3(n−1) an=−1+3(n−1) what is the 55 term in the sequence

Sindrei [870]

ANSWER

$a_{55}=161$

EXPLANATION

The general term for the sequence is

$a_n=-1+3(n-1)$

To find the 55th term, we have to substitute
$n = 55$
in to the general term and simplify.

This implies that,

$a_{55}=-1+3(55-1)$

$a_{55}=-1+3(54)$

$a_{55}=-1+162$

$a_{55}=161$

Therefore the 55th term is 161.

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3 years ago