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garri49 [273]
3 years ago
13

Simplify (2n + 5) - (3n + 7) + (4n - 9). -3n - 11 3n - 11 -3n + 11 3n + 11

Mathematics
1 answer:
Natasha2012 [34]3 years ago
3 0

Answer:

(B) 3n - 11

Step-by-step explanation:

(2n + 5) - (3n + 7) + (4n - 9) = 2n + 5 - 3n - 7 +4n - 9 = 3n  - 11

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Rational numbers can be written as either terminating or nonterminating decimals. What kind of nonterminating decimals are ratio
erica [24]

Answer:

Non terminating recurring decimals

Step-by-step explanation:

Decimals can be categorised into two groups: Terminating and non-terminating. Terminating decimals are rational, and non terminating can be further divided into: Non terminating Recurring (which are rational) and Non terminating Non recurring (which are irrational).

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3 years ago
Suppose that X is a Bernoulli random variable with success probability 0.8. (Note: If this number is not already rounded to two
zmey [24]
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2 years ago
Seis manzanas y 8 peras cuestan $26. ¿Cuanto cuesta cada pera y cada manzana sabiendo que cada manzana cuesta el triple de lo qu
Rom4ik [11]

Usando un sistema de ecuaciones, se encuentra que

  • Cada manzana cuesta $3.
  • Cada pera cuesta $1.

-----------------------

  • Un sistema de ecuaciones soluciona esta pergunta.
  • El custo de una manzana es x.
  • El custo de una pera es y.

-----------------------

  • <u>Seis manzanas y 8 peras cuestan $26</u>, o sea, 6x + 8y = 26
  • <u>Cada manzana cuesta el triple de cada pera</u>, o sea, x = 3y

-----------------------

Primero, encontramos el cuesto de una pera, substituyendo la segunda en la primera ecuación.

6x + 8y = 26

6(3y) + 8y = 26

18y + 8y = 26

26y = 26

y = \frac{26}{26}

y = 1

Cada pera cuesta $1.

-----------------------

<u>Cada manzana cuesta el triple de cada pera</u>, o sea, x = 3y = 3(1) = 3.

Cada manzana cuesta $3.

Se encuentra um problema similar en brainly.com/question/24646137

6 0
3 years ago
Look at the photo I need help
HACTEHA [7]

Plug 3 in for r it equals 28.26 so its A

4 0
4 years ago
Pls helpppppppp!!!!!!!!!!!!!!!!!!!!<br><br>I'll award brainliest
kolezko [41]

Answer:

I swear i had the exact same problem

Step-by-step explanation:

826 1/25

6 0
3 years ago
Read 2 more answers
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