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maria [59]
3 years ago
5

How do i find the proportionality of r

Mathematics
1 answer:
Paha777 [63]3 years ago
3 0
Since the graph is a linear function, we're going to use the slope formula solve this: 

Note I am replacing m with k
k= \frac{ y_{2}- y_{1} }{ x_{2}- x_{1} }

Inserting 2 points from the graph, let's use (1,8) and (2,16).

\frac{16-8}{2-1}



k=8



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2(x - 2.6) + 2.91 = 7.71
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I'll show a step-by-step. I'm not in the mood to explain right now lol.

2(x-2.6)+2.91=7.71

2x-5.2+2.91=7.71

   +5.20          +5.20

2x+2.91=12.91

    -2.91  -2.91

2x=10

/2   /2

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---

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Read 2 more answers
Find the value of t perimeter
Natali5045456 [20]

Answer:

<h2><em><u>t = 15.2 is the answer</u></em></h2>

Step-by-step explanation:

<h2><em><u>1. Make an equation</u></em></h2>

numbers to find perimeter = perimeter

Side + Side + 2 unknown sides = perimeter

12 + 7.8 + 2t = 50.2

<h2><em><u>2. Simplify like terms</u></em></h2>

19.8 + 2t = 50.2

<h2><em><u>3. Solve</u></em></h2>

19.8 + 2t = 50.2

-19.8        - 19.8

2t = 30.4

<h2><em><u>t = 15.2</u></em></h2>

<h2><u><em>4. Check:</em></u></h2>

12 + 7.8 + t + t = 50.2

12 + 7.8 + (15.2) + (15.2) = 50.2

<h2><em><u>50.2 = 50.2</u></em>   Correct!</h2><h2 />

Hope this helped,

Kavitha

7 0
3 years ago
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