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Lyrx [107]
2 years ago
12

Which expression is equivalent to – 12 + (-4/5) + 31 and includes the correct justification for the equivalence?

Mathematics
1 answer:
anyanavicka [17]2 years ago
8 0

Answer:

b

Step-by-step explanation:

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Hello how are you today. Question 2(×+-5)+×=×+(-6) ​
andre [41]

Answer:

x = 2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Distributive Property

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

2(x + -5) + x = x + (-6)

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Distributive Property] Distribute 2:                                                                 2x - 10 + x = x - 6
  2. [Addition] Combine like terms (x):                                                                   3x - 10 = x - 6
  3. [Subtraction Property of Equality] Subtract <em>x</em> on both sides:                         2x - 10 = -6
  4. [Addition Property of Equality] Add 10 on both sides:                                   2x = 4
  5. [Division Property of Equality] Divide 2 on both sides:                                  x = 2
6 0
2 years ago
Read 2 more answers
Which list of numbers can be described by the following rule?
Pie
<h3>Answer: Choice C</h3>

Explanation:

first term = 33

second term = first term + 16 = 33+16 = 49

third term = second term + 16 = 49+16 = 65

We're adding 16 to each term to get the next term.

6 0
2 years ago
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The cost for a pack of 7 padlocks to $23.80. Find the unit price in dollars per padlock. If necessary, round your answer to the
Galina-37 [17]

It asks to "Find the unit price in dollars per padlock"

The phrasing "dollars per padlock" is the same as "dollars per 1 padlock"

In other words, the teacher wants to know how much 1 padlock costs.

7 padlocks : $23.80

7/7 padlocks : $23.80/7 .... divide both parts by 7

1 padlock : $3.40

We see that 1 padlock costs $3.40, so the unit cost is $3.40 per padlock

6 0
3 years ago
Solve this Linear Equation
Setler [38]
The answer to your question is b -1

4 0
3 years ago
1. The ratio of Allison's weight to Brett's weight was 4:5. If Allison's weight
Scilla [17]

Answer:

the ratio would be 9:4 because you just add

Step-by-step explanation:

just add the rstio

3 0
2 years ago
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