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jenyasd209 [6]
3 years ago
6

Solve the following equations for x, and give evidence that your solutions are correct (x/2)+(1/3)=(5/6).

Mathematics
1 answer:
azamat3 years ago
4 0

Answer:

x = 1

Step-by-step explanation:

Given equation:

\frac{x}{2}+\frac{1}{3}=\frac{5}{6}

Now,

subtracting  \frac{1}{3} from both sides

we get

⇒ \frac{x}{2}+\frac{1}{3}-\frac{1}{3}=\frac{5}{6}-\frac{1}{3}

or

⇒ \frac{x}{2}+0=\frac{5}{6}-\frac{1}{3}

or

⇒  \frac{x}{2}=\frac{5\times3-6}{6\times3}

or

⇒ \frac{x}{2}=\frac{9}{18}

or

\frac{x}{2}=\frac{1}{2}

Now, multiplying both sides with the number 2, we get

x = 1

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Answer:

4/9

Step-by-step explanation:

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What is the difference written in scientific notation? 0.00067 - 2.3 x 10^5
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6.47X10^6

(not sure if it matters to you or not, but technically we only had two significant figures so it should be rounded to 6.5X10^6)


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3 years ago
Jimmy ran at a speed of m miles. how far did he run in t minutes
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Step-by-step explanation:

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What is the output value of (4x+2)(x-5)/2 using input value of x=2
Firdavs [7]

Answer:

-15

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

Step-by-step explanation:

<u>Step 1: Define</u>

(4x + 2)(x - 5) / 2

x = 2

<u>Step 2: Evaluate</u>

  1. Substitute:                             (4 · 2 + 2)(2 - 5) / 2
  2. Parenthesis - Multiply:          (8 + 2)(2 - 5) / 2
  3. Parenthesis - Add:                10(2 - 5) / 2
  4. Parenthesis - Subtract:         10(-3) / 2
  5. Multiply:                                 -30 / 2
  6. Divide:                                    -15
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