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11Alexandr11 [23.1K]
3 years ago
14

Evaluate the expression when x = 32 and y = 2 x/4y a. 1/16 b. 16/21 c. 2 d. 4

Mathematics
2 answers:
ohaa [14]3 years ago
4 0
32/4 (4)
32/16 = 2

it is c. 2
Ber [7]3 years ago
3 0

Answer:

d.4

Step-by-step explanation:

We are given that an expression

\frac{x}{4y}

We have to evaluate the value of the expression when x=32 and y=2

To find the value of the expression we will substitute the value of x and y in the given expression.

Substitute x=32 and y=2 in the expression

Then, we get

\frac{32}{4\times 2}=4

Therefore, the value of the expression =4

Hence, option d is true.

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3 years ago
8x - (2x - 13) = 42<br>solve and check the equation​
pantera1 [17]

Answer:

x = 29/6

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

Distributive Property

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

8x - (2x - 13) = 42

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

  1. [Distributive Property] Distribute negative:                                                     8x - 2x + 13 = 42
  2. [Subtraction] Combine like terms:                                                                    6x + 13 = 42
  3. [Subtraction Property of Equality] Subtract 13 on both sides:                        6x = 29
  4. [Division Property of Equality] Divide 6 on both sides:                                 x = 29/6

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                                                                                                  8(29/6) - [2(29/6) - 13] = 42
  2. Multiply:                                                                                                             116/3 - [29/3 - 13] = 42
  3. [Brackets] Subtract:                                                                                           116/3 - -10/3 = 42
  4. Subtract:                                                                                                            42 = 42

Here we see 42 does indeed equal 42.

∴ x = 29/6 is the solution.

7 0
3 years ago
Read 2 more answers
HELP IN THIS QUESTION PLZ
Alchen [17]
It would be the second one
8 0
3 years ago
In the file below. (Sorry, question has pictures can't write it out.)
UNO [17]
As what I can observe, the pathway can be formed with 2 right triangles. Thus, I'll get the area of the 2 right triangles and multiply its area by the paving cost per square meter.

Area of Right Triangle: ab / 2
a = 6 2/3 m ⇒ 20/3 m; b = 3m

Area of 1 triangle= (20/3 m * 3 m) ÷ 2 = 20 ÷ 2 = 10 m²   

Area of 2 triangles = 10m² * 2 = 20 m²

Total cost = $40 * 20m² = $800 
5 0
3 years ago
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