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Otrada [13]
2 years ago
10

Solve this equation

Mathematics
1 answer:
marishachu [46]2 years ago
5 0

Answer:

k=-11

Step-by-step explanation:

Rewrite the Equation.

\frac{k+3}{2} =-4

Multiply both sides of the Equation by 2.

2*\frac{k+3}{2}=2*-4

Simplify both sides of the Equation.

k+3=-8

Move all terms not containing k to the right side of the Equation.  

k=-11

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Answer:

(4, 1)

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  

Equality Properties

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

<u>Algebra I</u>

  • Terms/Coefficients
  • Coordinates (x, y)
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = 2x - 7

y = -x + 5

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

<em>Substitution</em>

  1. Substitute in <em>y</em>:                                                                                                2x - 7 = -x + 5
  2. [Addition Property of Equality] Isolate <em>x</em> terms:                                            3x - 7 = 5
  3. [Addition Property of Equality] Isolate <em>x</em> term:                                              3x = 12
  4. [Division Property of Equality] Isolate <em>x</em>:                                                       x = 4

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define original equation:                                                                               y = -x + 5
  2. Substitute in <em>x</em>:                                                                                                y = -4 + 5
  3. Add:                                                                                                                 y = 1
7 0
3 years ago
What is the value of y in the sequence below? 2, y, 18, -54, 162 ,...
mixer [17]

Answer:

6

Explanation:

mutiply by 3 first

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to get to -54 , mutiply by -3 with 18

-3*18= -54

-54*-3= -162

7 0
3 years ago
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Is 110,571 divisible by 3?
MAXImum [283]

Answer:

yes, it is.

Step-by-step explanation:

110,571 divided by 3 is 36857. So, since the answer is not a decimal or a fraction, 110,571 is divisable by 3

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One that could be close is Letter B?
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Answer:

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Step-by-step explanation:

41 is a prime number hence cannot be divided by anything.

Therefore, 20/41 simplified is still 20/41 and in decimal format is 0.488(3 d.p)

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3 years ago
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