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jek_recluse [69]
2 years ago
11

Solve the system. x=5y y=22-2x What is the solution?

Mathematics
2 answers:
pychu [463]2 years ago
7 0

Answer:

{x,y} = {10,2}

Step-by-step explanation:

Solve equation [2] for the variable  y

[2]    y = -2x + 22

Plug this in for variable  y  in equation [1]

[1]    x - 5•(-2x+22) = 0

  [1]    11x = 110

Solve equation [1] for the variable  x

  [1]    11x = 110

  [1]    x = 10

By now we know this much :

   x = 10

   y = -2x+22

Use the  x  value to solve for  y

   y = -2(10)+22 = 2

Furkat [3]2 years ago
6 0
The solution is (10,2) or x=10, y=2. Hope this helps :)
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Minchanka [31]

Answer:

Average rate of change = 20.2

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Rate of change at the right  endpoint : f' (5.1) = 4*5.1 = 20.4

Step-by-step explanation:

The average rate of change of the function

F(t) = 2t^2 - 1 ,  [ 5,5.1 ]

solution

\frac{f(5.1)-f(5)}{5.1 - 5} = \frac{2*(5.1)^2-1-(2*5^2-1)}{0.1}   = [ 2 ( 26.01 - 25 ) / 0.1 ]

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Rate of change at the right  endpoint : f' (5.1) = 4*5.1 = 20.4

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3 years ago
4. What is 54 + (-78) - (-39)
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Answer:

Step-by-step explanation:

follow the Pemdas order of operations

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Step-by-step explanation:

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