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Marta_Voda [28]
2 years ago
12

Twice a number plus 8 is equal to 22​

Mathematics
2 answers:
erastovalidia [21]2 years ago
8 0

Answer:

7 × 2 + 8 = 22

Step-by-step explanation:

Ulleksa [173]2 years ago
3 0

Answer: uhh I don't get it but ima try it-

Step-by-step explanation:

Let the number be x.

Twice the number = 2x

Twice the number increase by 8 = 2x+8

Twice the number increase by 8 is 22

2x + 8 = 22

The solution to this equation will be as follows:

2x = 22 – 8

2x = 7

Divide both sides by the coefficient of x,that is 2 in this case:

2x/7 = 12/2  

So after you do that you get:

x = 21

I AM SO NOT SURE THIS IS THE ANSWER i think i did sum wrong

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What is the surface area of the cylinder in terms of ? The diagram is not drawn to scale.
Delicious77 [7]

Answer:

SA = 748π in²

General Formulas and Concepts:

<u>Symbols</u>

  • π (pi) ≈ 3.14

<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<u> </u>

<u>Geometry</u>

Surface Area of a Cylinder Formula: SA = 2πrh + 2πr²

  • <em>r</em> is radius
  • <em>h</em> is height

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

<em>r</em> = 11 in

<em>h</em> = 23 in

<u>Step 2: Find Surface Area</u>

  1. Substitute in variables [Surface Area of a Cylinder Formula]:                       SA = 2π(11 in)(23 in) + 2π(11 in)²
  2. Evaluate exponents:                                                                                         SA = 2π(11 in)(23 in) + 2π(121 in²)
  3. Multiply:                                                                                                             SA = 506π in² + 242π in²
  4. Add:                                                                                                                   SA = 748π in²
7 0
2 years ago
Solve for x, 12y+6=6(y+1)
Vanyuwa [196]

For this case we must solve the following equation:

12y + 6 = 6 (y + 1)

We apply distributive property on the right side of the equation:

12y + 6 = 6y + 6

We subtract 6y on both sides of the equation:

12y-6y + 6 = 6\\6y + 6 = 6

We subtract 6 from both sides of the equation:

6y = 6-6\\6y = 0

Dividing by 6 on both sides of the equation:

y = 0

So, the result is y = 0

Answer:

y = 0

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3 years ago
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Answer:

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artcher [175]

<span>Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.</span>

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Step-by-step explanation:

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