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Mkey [24]
3 years ago
7

Simplify 3 + 5(x - 4)

Mathematics
1 answer:
tino4ka555 [31]3 years ago
3 0
3+5(x-4)
= 3 + 5x - 20
= 5x - 17

3(x-6) = -12
3x - 18 = -12
3x = 6
x = 2
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Answer:

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Step-by-step explanation:

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If it’s costs 60 cents for 125 grammes. How much would 100 grammes cost?
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➷ Work out the cost per gram

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Multiply this by 100 to get the answer:

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Why would negative numbers not make sense for the values of the variables
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3 years ago
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May someone solve and give explanation
torisob [31]

Answer:

x = 15.7945

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> </u>

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

Angle θ = 33°

Opposite Leg = <em>x</em>

Hypotenuse = 29

<u>Step 2: Find Angle</u>

  1. Substitute in variables [sine]:                                                                           sin33° = x/29
  2. [Multiplication Property of Equality] Multiply 29 on both sides:                    29sin33° = x
  3. Rewrite:                                                                                                             x = 29sin33°
  4. Evaluate:                                                                                                           x = 15.7945
7 0
3 years ago
The table shows a proportional relationship. What is the value of y when x = 29.4?
lions [1.4K]

Answer:y=16.8

Step-by-step explanation:

proportional means that x/y= constant

so there the constant is 1.75

if x=29.4 then 29.4/y =1.75

y = 29.4/1.75

8 0
2 years ago
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