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DanielleElmas [232]
3 years ago
11

Is what is the slope of -1,5 -5,-5 on a graph

Mathematics
1 answer:
blagie [28]3 years ago
4 0

Answer:

Step-by-step explanation:

(-1,5)....x1 = -1 and y1 = 5

(-5,-5)..x2 = -5 and y2 = -5

slope = (y2 - y1) / (x2 - x1)

slope = (-5 - 5) / (-5 - (-1) = -10 / (-5 + 1) = -10/-4 = 5/2 <===

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Answer
Notebook each =$4
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First we write out what we know
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It says a notebook is +5 than a folder so
f = n +5
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3n + 2f = 30

Because we know from the first equation
f=n+5, we can substitute that into the second equation for f

3n + 2(n+5) = 30
3n + 2n +10 =30. Now Combine like terms
5n +10 =30. Now isolate n by subtracting 10 from both sides
5n = 20. Now isolate n by dividing both sides by 5
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Now we do the same thing to find f
We substitute the value of n (4) into the equation 3n + 2f =30
3(4) +2f =30
12 +2f =30. Now isolate f by subtracting 12 from both sides
2f = 18. Now isolate f by dividing both sides by 2
f = 9


We check our work by inserting the n and f values we found into one of the equations
n + 5 = f
4 + 5 = 9
9 = 9. It worked it equals so it’s correct
8 0
1 year ago
Can anyone help check if my calculation is correct or wrong?
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Step-by-step explanation:

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