<span> 7x+2y=5;13x+14y=-1 </span>Solution :<span><span> {x,y} = {1,-1}</span>
</span>System of Linear Equations entered :<span><span> [1] 7x + 2y = 5
</span><span> [2] 13x + 14y = -1
</span></span>Graphic Representation of the Equations :<span> 2y + 7x = 5 14y + 13x = -1
</span>Solve by Substitution :
// Solve equation [2] for the variable y
<span> [2] 14y = -13x - 1
[2] y = -13x/14 - 1/14</span>
// Plug this in for variable y in equation [1]
<span><span> [1] 7x + 2•(-13x/14-1/14) = 5
</span><span> [1] 36x/7 = 36/7
</span><span> [1] 36x = 36
</span></span>
// Solve equation [1] for the variable x
<span><span> [1] 36x = 36</span>
<span> [1] x = 1</span> </span>
// By now we know this much :
<span><span> x = 1</span>
<span> y = -13x/14-1/14</span></span>
<span>// Use the x value to solve for y
</span>
<span> y = -(13/14)(1)-1/14 = -1 </span>Solution :<span><span> {x,y} = {1,-1}</span>
<span>
Processing ends successfully</span></span>
The answer to this question is C since <span>78% of the votes in an election. in a random sample of 40 eligible voters, 28 said they voted for jackie.</span>
Per ticket cost $17.25
Per person conveyance fee $3.00
Percent increase in the cost of per ticket
17.39%
y2 - y1
---------
x2 - x1
3 - 1 2 1
------- = -------- = --------
4 - 0 4 2
Find the y-intercept:
1 = 1/2(0) + b
1 = 0 + b
-0 -0
1 = b
The slope-intercept equation is:
y = 1/2x + 1
so its D
<h2>answer;</h2><h2>B) 12</h2>
<h2>_________</h2><h2><em>explanation</em><em>:</em><em>:</em><em>:</em></h2>
after adding both equation
we \: get..
<h2>
{x}^{2} + xy + {y}^{2} + xy = 62 + 82 </h2><h2>
x^2 + y^2 + 2xy = 144 </h2><h2>
(x + y)^2 = 144 </h2><h2>
(x + y) = sqrt{144} </h2><h2>
x + y = 12</h2>
<h2><em>it</em><em> </em><em>may</em><em> </em><em>be</em><em> </em><em>helpful</em><em> </em><em>for</em><em> </em><em>u</em></h2><h2><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>❤</em><em>❤</em><em>❤</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em></h2><h2><u><em>plzzz</em><em> </em><em>mar</em><em> </em><em>it</em><em> </em><em>as</em><em> </em><em>a</em><em> </em><em>brilliant</em><em> </em><em>ans</em></u></h2>