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Sonbull [250]
3 years ago
12

Please help me Asap i really need this

Mathematics
2 answers:
Montano1993 [528]3 years ago
7 0

Answer:

B

Step-by-step explanation:

DerKrebs [107]3 years ago
5 0

Answer:

B brainlist

Step-by-step explanation:

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Read 2 more answers
PLEASE HELP ME!!!!!!!!!
Makovka662 [10]

Answer:

  (a)  (5, -3)

Step-by-step explanation:

The "substitution method" for solving a system of equations requires that you write an expression that can be substituted for a variable in one or more of the other equations in the system.

<h3>Expression to substitute</h3>

The given equations are ...

  • y = x -8
  • 2x +3y = 1

We notice the first equation gives an expression for y. This is exactly what we want to substitute for y in the second equation.

<h3>Substitution</h3>

When the expression (x-8) is substituted for y in the second equation, you get ...

  2x +3(x -8) = 1

This simplifies to ...

  5x -24 = 1

<h3>Solution</h3>

This 2-step equation can now be solved in the usual way:

  5x = 25 . . . . . . add 24 to isolate the variable term

  x = 25/5 = 5 . . . . . divide by the coefficient of x

Note that we now know what the correct answer choice is.

Using the expression for y, we find ...

  y = x -8 = 5 -8 = -3

The solution is (x, y) = (5, -3).

__

The attached graph confirms this solution.

6 0
1 year ago
Serial numbers for a product are to be made using 3 letters followed by 3 numbers. If the letters are to be taken from the first
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So to find the total possibilities take 5*4*3*10*10*10 = 60,000
3 0
3 years ago
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