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slega [8]
3 years ago
5

Need help please real fast will give brainlist

Mathematics
1 answer:
viktelen [127]3 years ago
4 0

Answer:

-2

Step-by-step explanation:

Hope it helps

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Are 2a and 2b like terms ? explain .
djyliett [7]

Answer:

Nope

Step-by-step explanation:

Since they both have different variables they aren’t like terms

4 0
3 years ago
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Factor: m^2 - 20m - 21
Anton [14]

Answer: (m-21)(m+1)

Step-by-step explanation:

To factor this trinomial, find two numbers that multiply to -21 and add to -20:

(-21)(1)=-21

-21+1=-20

They are -21 and 1.

Add -21 and 1 to m to get both factors:

(m+(-21)) and (m+1)

(m-21) and (m+1)

Multiply them to get the answer:

(m-21)(m+1)

4 0
3 years ago
Andrew has three times as many pencils as Noah and five pens he has 17 pens and pencils altogether how many pencils does Noah ha
Novay_Z [31]

9514 1404 393

Answer:

  4

Step-by-step explanation:

The distributive property does not appear to be involved in this question.

Let n represent the number of Noah's pencils. Then Andrew's total is ...

  3n +5 = 17

  3n = 12 . . . . . subtract 5 from both sides

  n = 4 . . . . . .  divide both sides by 3

Noah has 4 pencils.

7 0
3 years ago
PLEASE HELP ME FAST!!!!!!!<br> who do i write the number 0.23333333333... repeating as a fraction?
PSYCHO15rus [73]
It is 23/100 just say it and then write it
3 0
3 years ago
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A) If a + 5 = 15, then find the value of a​
ozzi

Answer:

The answer is 10

Step-by-step explanation:

a + 5 =15

15-5=10

6 0
3 years ago
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