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Zielflug [23.3K]
2 years ago
11

Solve the system of linear equations by substitution x=17-4y y=x-2

Mathematics
1 answer:
Zigmanuir [339]2 years ago
6 0

9514 1404 393

Answer:

  (x, y) = (5, 3)

Step-by-step explanation:

We can use the second equation to substitute for y in the first.

  x = 17 -4(x -2)

  5x = 25 . . . . . . . . eliminate parentheses, add 4x

  x = 5

  y = 5 -2 = 3

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

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Angel bought 5 pounds of chicken for $9.99 . what is the unit rate for 1 pound of chicken
Sedbober [7]

Answer:

Step-by-step explanation:

9.99divide by 5 is1.998 1.998*5=9.99 so 1 pound would be 1.998

4 0
3 years ago
If g(x)= x^2-2x-6 and h(x)= 2x^2-5x+2 find (h-g) (-2)
Natalka [10]

Answer:

<h2>(h - g)( - 2) = 18</h2>

Step-by-step explanation:

g(x) = x² - 2x - 6

h(x) = 2x² - 5x + 2

To find (h-g) (-2) we must first find h - g(x)

To find h - g(x) subtract g(x) from h(x)

We have

<h3>(h - g)(x) =  {2x}^{2}  - 5x + 2 - ( {x}^{2}  - 2x - 6)  \\  =  {2x}^{2}  - 5x + 2 -  {x}^{2}  + 2x + 6 \\  =  {2x}^{2}  -  {x}^{2}  - 5x + 2x + 2 + 6</h3><h3>(h - g)(x) =  {x}^{2}  - 3x + 8</h3>

To find (h-g) (-2) substitute the value of x that's - 2 into (h - g)(x) that's replace every x in (h - g)(x) by - 2

That's

<h3>(h - g)( - 2) =  ({ - 2})^{2}  - 3( - 2) + 8 \\  = 4 + 6 + 8 \\  = 10 + 8</h3>

We have the final answer as

<h3>(h - g)( - 2) = 18</h3>

Hope this helps you

7 0
3 years ago
Solve the equation<br> -5=y for x.
sesenic [268]

Answer: 5 = y

Step-by-step explanation:

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3 years ago
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Vlada [557]
3. C
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2 years ago
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Which fact is related to 12 = 3 = 4?<br> I need help
Svetach [21]

Answer:

factors

Step-by-step explanation:

3 0
3 years ago
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