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Ilya [14]
1 year ago
14

Solve this system of equations by

Mathematics
2 answers:
timofeeve [1]1 year ago
8 0

Answer:

(12 , -8)

Step-by-step explanation:

<h2>Solving system of equation:</h2><h3>    Elimination method</h3>

                x + y = 4 ---------------(I)

              4x + 3y = 24 ---------------------(II)

Multiply equation (I) by (-4) and then add the equations. By doing this, 'x' will be eliminated and we can find the value of 'y'.

(I) *(-4)           -4x - 4y = -16

(II)                <u>   4x + 3y = 24 </u>   {Now add}

                             -y   = 8

                              y   = 8/(-1)

         \boxed{y = -8}

Plugin y =-8 in any of the equations. Here , we are going to plugin  equation (I)

        x + (-8) = 4

            x - 8 = 4

                  x = 4 + 8

           \boxed{x = 12}

Goshia [24]1 year ago
6 0
Answer: x = 12 and y = -8

Explanation:
x + y = 4
4x + 3y = 24
———————
-3(x + y = 4)
4x + 3y = 24
———————-
-3x - 3y = -12
4x + 3y = 24
———————
x = 12

If x = 12
x + y = 4
12 + y = 4
y = -8
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Answer:

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Step-by-step explanation:

The quadratic function can be rearranged to look like this:

x^2-3x-1=0

Now we see that the constant b is equal to -3. Using the hint, we find:

(-3/2)^2=9/4

Hope that helps!

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3 years ago
On the number line below the Numbers eight and B are the same distance from zero what is a plus B explain how you know?
Igoryamba
A = 1
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a + b = 
1 + (-1) =
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Katyanochek1 [597]
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6 0
3 years ago
A compressed air tank carried by scuba divers has a volume of 8.00 L and a pressure of 141 atm at 22.0°C. What is the volume (in
weqwewe [10]

Answer:

Volume of air in the tank =1,044 Liter

Step-by-step explanation:

Given:

Tank volume = 8 Liter

Pressure = 141 atm

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Find:

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Computation:

\frac{Pressure\times Tank\ volume}{Tempreture} =\frac{Pressure\times Air\ volume}{Tempreture}\\\\\frac{141\times 8}{295} =\frac{1\times Air\ volume}{273.15}\\\\\frac{1,128}{295} =\frac{Air\ volume}{273.15}\\\\Air\ volume=1,044.45

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<span>I hope this helps, Regards.</span>

6 0
3 years ago
Read 2 more answers
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