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tekilochka [14]
3 years ago
6

Solving a System of Linear Equations Using the Graphing

Mathematics
2 answers:
Sphinxa [80]3 years ago
5 0

Answer:

The solution is (22.8, 40.1)

Step-by-step explanation:

Transform the equations to 'y = '

2r + 3y = 169

3y =  -2r + 169

y = -2/3 r + 169/3

5r = y + 74

y = 5r - 74.

Now you can use the calculator to draw the graphs or use the equation facility if it has one.

Where the graphs intersect is the solution.

Katen [24]3 years ago
3 0

9514 1404 393

Answer:

  (r, y) = (23, 41)

Step-by-step explanation:

See the attachment for the solution.

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What is the slope of (-7,-1) and (3,8)? Pls show your work
kondor19780726 [428]

Answer:

m=\frac{9}{10}

Step-by-step explanation:

To find the slope between any two points, we can use the following slope formula:

m=\frac{y_2-y_1}{x_2-x_1}

Let (-7, -1) be (x₁, y₁) and let (3, 8) be (x₂, y₂). Substitute them into the slope formula:

m=\frac{8-(-1)}{3-(-7)}

Evaluate:

m=\frac{9}{10}

Therefore, the slope between the two points is 9/10.

6 0
3 years ago
I need this<br> ctugkvhjkibnlbk;vhiglcufxoryifcuglvihk;b j;hviglucforxiy6eryfcuglvhk
Orlov [11]

Answer:

11(7 + 4) = 11 × 7 + 11 × 4

Step-by-step explanation:

11(7 + 4) = _ x 7 + 11 x _

use distributive property:

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3 0
3 years ago
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G. Write the equation of the line in slope-intercept form.
Neko [114]

Answer:

  • y= x-2
  • y = 4/5 x+39/5

Step-by-step explanation:

1.

(3,1) and\:perpendicular \:to \: y = -x+1\\(3,1) = (x,y)\\m = -1\\In\: perpendicularism ; m_2 = \frac{-1}{m_1} \\m_2 = \frac{-1}{-1} \\m_2 =1\\y = mx+c\\1 = 1(3) +c\\1=3+c\\1-3=c\\-2 =c\\Substitute \:new \:values\:into\\y =mx+c\\y = 1x -2\\y = x-2

2.

(-1,7) =(x_1,y_1)\\\\5y = 4x+5\\\\Write\:in\:y=mx+c\:form\\\frac{5y}{5} = \frac{4}{5} x + \frac{5}{5} \\y = \frac{4}{5} x +1\\m = \frac{4}{5} \\\\y -y_1=m(x-x_1)\\y-7=\frac{4}{5} (x -(-1)\\y -7 = 4/5(x+1)\\y -7 = 4/5x +4/5\\\\y = \frac{4}{5} x+\frac{4}{5} +7\\\\y = \frac{4}{5} x +39/5

6 0
3 years ago
I need major help. I have a time limit. Please help
inessss [21]

Answer:

what u need help with

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8 0
3 years ago
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How do you use the distance formula and slope formula to classify a triangle
Sergio039 [100]

see the distance formula to find the length of the sides...
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8 0
4 years ago
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