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Nesterboy [21]
3 years ago
8

Help me please thx so much have a good one

Mathematics
1 answer:
bazaltina [42]3 years ago
8 0
Picture is blurrry.

Hope it help
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If A = -3n + 2 and B = 5n - 7, what is the value of A - B, in simplest form?
11Alexandr11 [23.1K]

Answer:

-8n + 9

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

A = -3n + 2

B = 5n - 7

A - B

<u>Step 2: Simplify</u>

  1. Substitute:                              -3n + 2 - (5n - 7)
  2. Distribute negative:               -3n + 2 - 5n + 7
  3. Combine like terms (n):         -8n + 2 + 7
  4. Combine like terms (Z):         -8n + 9
4 0
3 years ago
!solve this!<br> 3x + 70 − 7x ≥ 18
UNO [17]

Answer:

3x + 70 − 7x ≥ 18

Step 1: Simplify both sides of the inequality.

−4x + 70 ≥ 18

Step 2: Subtract 70 from both sides.

−4x + 70 − 70 ≥ 18 − 70

−4x ≥ −52

Step 3: Divide both sides by -4.

−4x /−4  ≥  −52 /−4

x ≤ 13

8 0
2 years ago
19. 140% of 60<br> find the percent of the number. Explain your method
KonstantinChe [14]

Answer:

84

Step-by-step explanation:

is                    x           140

----   SO ...    -------  =  --------

of                  60         100

(hit like pls)

60*140=100x

8400=100x

/100     /100

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

   84 = x

8 0
2 years ago
Which figures are polygons? select all that are
Ivanshal [37]
Figures A, C and D are all examples of polygons!

I hope this helped! Mark me Brainliest! :) -Raven❤️
6 0
3 years ago
There are 7 girls on a bus. each girl has 7 backpacks. each backpack has 7 big cats. each big cat has 7 little cats. how many le
Vera_Pavlovna [14]
7 girls on a bus, each has two legs. 7 * 2 = 14. 

Each girl has 7 backpacks. So 7 * 7 = 49. 

49 * 7 = 343 cats in total 

343 * 4 = 1,372 cat legs. 

343 * 7 = 2401 small cats 

2401 * 4 = 9,604 cat legs 

14 + 1,372 + 2,401, + 9,604 = 10,990 legs in total
6 0
3 years ago
Read 2 more answers
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