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Nezavi [6.7K]
3 years ago
6

-3x +2y= 4 4x-13y=5 solve by elimination

Mathematics
1 answer:
Svet_ta [14]3 years ago
4 0
I am better at substitution, but you want to get the equations as similar as possible, but are the opposite, so you can cancel it out.

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Dvinal [7]
The answer to -7 +11 -6 + 8 =6
6 0
3 years ago
Srry I just don’t understand 12 points
marshall27 [118]

Answer:

y = -2x - 3

Step-by-step explanation:

Please look carefully at this graph.  There are two red dots on the graph.  The x- and y-coordinates of one are (-5,7) and those of the other are (0,-3).

Now as we move to the right, from (-5,7) to (0,-3), x increases by 5 and y decreases by 10 (note that 7-10 is -3).  Thus, the slope of this line is

m = rise / run = -10/5, or m = -2.

Then the equation of this line, in point-slope form, is

y-7 = -2(x-[-5])x, or y-7 = -2(x+5).  This is in point-slope form.

If you'd like to have it in slope-intercept form, manipulate y-7 = -2(x+5) as follows:  (a) add 7 to both sides, obtaining y = -2(x+5) + 7, and (b) perform the indicated multiplication:  y = -2x - 10 + 7, or y = -2x - 3.

6 0
3 years ago
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How do i rearrange a(x-y)=b(z-x) to make x the subject?
Ket [755]

Answer:here's ur answer

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4 0
3 years ago
What decimal is equivalent to 31/9
antiseptic1488 [7]

Answer:

3.44444

Step-by-step explanation:

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8 0
3 years ago
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Bethany drove 50 miles on
melisa1 [442]

Answer:

She drove 72 miles on tuesday,

Over 3 days she drove = 50+72+38 = 160 miles

Now,

ratio = 72 : 160

= 36/80

= 9/20

= 9:20

A) 9:20

6 0
2 years ago
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