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Evgesh-ka [11]
3 years ago
14

Please help simplify this equation by combining like terms (3x-5) +(4x+12)

Mathematics
2 answers:
I am Lyosha [343]3 years ago
4 0

Answer:

7x+17

Step-by-step explanation:

(3x-5) +(4x+12)

I like to line them up vertically

 (3x-5)

+(4x+12)

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

  7x+17

zhuklara [117]3 years ago
4 0
PEMDAS
parenthesis
exponents
multiplication and division (whichever comes first)
addiction and subtraction (whichever comes first)
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coldgirl [10]

Answer:

r =  -  \frac{5}{3}  = 1 \frac{2}{3}  =  - 1.6

Step-by-step explanation:

- 8r -  ( - 2r - 3) = 13

- 8r + 2r + 3 = 13

- 6r + 3 = 13

- 6r = 13 - 3

- 6r = 10

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3 years ago
Seven-ninths of the pencils in a box are yellow. Three-tenths of the yellow pencils are sharpened. What fraction represents the
jek_recluse [69]

Answer:

7/30

Step-by-step explanation:

We are given that Seven-ninths (7/9) of the pencils in a box are yellow and three-tenths (3/10) of the yellow pencils are sharpened.

To find the fraction that represents sharpened yellow pencils, we find the product of the the fraction of yellow pencils and the fraction of yellow pencils that are sharpened.

That is:

=> (7 / 9) * (3 / 10)

=(7 * 3) / (9 * 10)

= 21 / 90

= 7 / 30

7/30 represents the fraction of sharpened yellow pencils.

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3 years ago
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Gala2k [10]

Answer:3rd choice


Step-by-step explanation:

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Wait what did she have in her account? We need to know to answer.

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How do you write 1/5 as a decimal
PSYCHO15rus [73]
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