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nevsk [136]
3 years ago
7

For what value of x is the rational expression below when x is equal to 4? X+20/x+4

Mathematics
1 answer:
arlik [135]3 years ago
7 0

x+20/x+4

↓

4+20/4+4

↓

4+5+4=13



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Solve the following system of equations algebraic<br> y=x^2+3x-29<br> y=2x-9
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Step-by-step explanation:

Given equations:

       y  = x² + 3x - 29    ------ (i)

       y  = 2x - 9  ---------------- (ii)

Now to solve this problem, we must determine the value of x and y;

 Equate equations 1 and 2;

       x² + 3x - 29 = 2x - 9

       x² + 3x - 2x - 29 + 9  = 0

       x² + x - 20  = 0

       x² + 5x - 4x - 20  = 0

       x(x + 5 ) - 4(x + 5) = 0

      (x - 4) (x+ 5) = 0

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So;   solve for y now;

     y = 2x - 9

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The answer to this question is 14 degrees Fahrenheit.
T(60) = (-7/6)(60) + 84 = 14
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Read 2 more answers
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