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Aleks [24]
3 years ago
14

Let the cost of a pen be dollars. Write an expression for the total cost of four pens and seven mechanical pencils in terms of .

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

4x +7 = ?  

Step-by-step explanation:

It was easy except you need more info to solve the equation

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Multiply 7 x 12 which is 84, 8x2 is 16, 16 divded by 3 is 5, so 5 minutes
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2 years ago
What times two equals 148
Ratling [72]
That would be 74 because when you divide 148/2=74
3 0
2 years ago
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Y = 3x-2 estimate the value of x when y=3
jok3333 [9.3K]

Answer:

x = 5/3

General Formulas and Concepts:
<u>Algebra I</u>

Equality Properties

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

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify given.</em>

y = 3x - 2

y = 3

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

  1. [Equation] Substitute in <em>y</em>:
    3 = 3x - 2
  2. [Addition Property of Equality] Add 2 on both sides:
    5 = 3x
  3. [Division Property of Equality] Divide 3 on both sides:
    5/3 = x
  4. Rewrite:
    x = 5/3

∴ the value of <em>x</em> when <em>y</em> = 3 is equal to 5/3, or approximately 1.67.

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Learn more about Algebra I: brainly.com/question/27710551

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Topic: Algebra I

5 0
1 year ago
6y+5(2y+3y)+0+0+0+0+0+0
BARSIC [14]

Answer: 31y

Step-by-step explanation: Factor the expression and simplify. Could I please have brainliest?

5 0
3 years ago
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I give 15 points;<br> I think all wrong, BUT it Should have an answer, please help me.
Lubov Fominskaja [6]

Answer:

i hope youll be success in life somedayy

4 0
2 years ago
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