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mr_godi [17]
3 years ago
5

What is the value of x? Enter your answer in the box.

Mathematics
2 answers:
OverLord2011 [107]3 years ago
4 0
5x + 10           10
---------- =      -------
   121               11

make the bottom have same common denominator

10/11 x (10/10) = 100/121

Get rid of the denominator (for both now have 121 as a base)

5x + 10 = 100

5x + 10 (-10) = 100 (-10)

5x = 90

5x/5 = 90/5

x = 18

x = 18  is your answer

hope this helps
swat323 years ago
3 0

121/11 =11

10* 11 = 110

5x+10 = 110

5x = 100

x = 20

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<u>ANSWER</u>

The common ratio is -3.

<u>EXPLANATION</u>

In general, the common ratio of a Geometric Sequence is given by:

r = \frac{a_{n+1}}{a_{n}}

We can find the common ratio using any two consecutive terms of the geometric sequence by dividing the subsequent term by the previous term.

The given sequence is -2,6,-18,54

Using the first two terms the common ratio is

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We could also used the second and third terms to get

r =  \frac{ - 18}{6}  =  - 3

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lisov135 [29]
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PIT_PIT [208]

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\boxed{\bold{\frac{1}{9} }}

Explanation:

(13,-3), (-5,-5)

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chubhunter [2.5K]

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so 8:120

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1:15

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