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Alex Ar [27]
3 years ago
10

Write a slope intercept equation for a line that passes through (-3,5) and (2,-5)

Mathematics
1 answer:
anyanavicka [17]3 years ago
7 0

Answer:

Step-by-step explanation:

(-3,5) and (2,-5)

Slope m = (y2 - y1)/(x2 - x1)

y2 = -5, y1 = 5, x2 = 2, x1 = -3

m = (-5 - 5)/(2 + 3)

m = -10/5

m = -2

Slope = -2

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Solve for X and Y: <br> Y=2+7x and -2x+6y=-28
Furkat [3]

Answer:

x=-1 and y=-5

Step-by-step explanation:

ሰላም!

Given expressions let them given as two equations

  • y=2+7x....... equation (1)
  • -2x+6y=-28..... equation (2)

Thus, substitute y=2+7x into equation (2)

- 2x + 6(2 + 7x) =  - 28 \\

simplify it

- 2x + 12 + 42x =  - 28 \\ 40x + 12 =  - 28

subtract 12 from both sides

40x + 12 - 12 =  - 28 - 12 \\ 40x =  - 40

divide both sides by 40

\frac{40x}{40}  =  \frac{ - 40}{40} \\ x =  - 1

Therefore, as we get the value of x=-1 substitute it to equation (1) and solve for variable y

y = 2 + 7x \\ y = 2 + 7( -1 ) \\ y = 2 - 7 \\ y =  - 5

To be more sure make a cross check on both of the two expressions

Thus,

1) y=2+7x .... substitute y=-5 and x=-1 and check if it is equal

-5=2+7(-1)

-5=2-5

-5=-5

2)-2x+6y=-28... substitute and check

-2(-1)+6(-5)=-28

2-30=-28... (-a)(-b)=ab

-28=-28

Hope it helps!

6 0
1 year ago
Every month Marina pays $79 for mobile phone service, $59.95 for cable service, and $45.50 for internet service. She can switch
belka [17]
She would save 54.45 because addding them up individually before the plan would cost 184.49 and to find the difference all you have to do is subtract 184.49-129.99 and that would tell you how much she saved
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Read 2 more answers
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Answer:

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Step-by-step explanation:

75 * (1 + .2/12)^10 * 12

75 * (1.016667)^10*12

Now things get a little tricky. What does 10*12 mean? I'm taking it to mean 120

75 * (1.016667)^120

75 * 7.268

545.119

8 0
3 years ago
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Solve for h<br> Give an exact answer.<br> 3h=7( 2/7− 3/7 h)−10
romanna [79]
Its -4/3
Thank You.
Pls mark Brainliest!
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3 years ago
What are the coefficients in 9/3+6+9a​
Norma-Jean [14]

Answer:

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Step-by-step explanation:

cuz it has a variable by it

7 0
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