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Vlad [161]
2 years ago
13

Please how can I solve this????

Mathematics
1 answer:
Tanzania [10]2 years ago
7 0

Step-by-step explanation:

You will use combinations

20C3 = 20*19*18= 6840 there are 6840 combinations that are possible. You can look up to find a combination calculator. For combinations the order does not matter, this order does not matter. For permutations order does matter.

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A garden is in the shape of a square. the area of the garden is 178 square meters. the exact length of a side of the garden is b
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The answer to this is <span>13.34.</span>
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Solve this system by substitution. y = 3 y = -3x + 6 *Remember to write your answer as a coordinate point (x, y). I​
DochEvi [55]

Answer:

(1, 3)

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>Algebra I</u>

  • Coordinates (x, y)
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = 3

y = -3x + 6

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

  1. Substitute in <em>y</em>:                                                                                                 3 = -3x + 6
  2. [Subtraction Property of Equality] Subtract 6 on both sides:                      -3 = -3x
  3. [Division Property of Equality] Divide -3 on both sides:                                1 = x
  4. Rewrite/Rearrange:                                                                                        x = 1

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define original equation:                                                                               y = -3(1) + 6
  2. Multiply:                                                                                                           y = -3 + 6
  3. Add:                                                                                                                 y = 3
6 0
2 years ago
Ax+bx-c=0 x= _/(a __)
Ulleksa [173]
Ax+bx−c=0

Step 1: Add c to both sides.

ax+bx−c+c=0+c

ax+bx=c

Step 2: Factor out variable x.

x(a+b)=c

Step 3: Divide both sides by a+b.

x(a+b)a+b=ca+b

x=ca+b

4 0
3 years ago
Read 2 more answers
Jill is inviting friends for
Free_Kalibri [48]

Answer:

13.

Step-by-step explanation:

If each of the first 12 guests happens to be born in a different month, the 13th person will have to be born in the same month as one of the first 12.

3 0
2 years ago
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