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Aleksandr-060686 [28]
3 years ago
11

What is the solution to this system of equations? Negative 3 x + 5 y = negative 2. 3 x + 7 y = 26. NEED FAST TAKING UNIT TEST 40

points
Mathematics
2 answers:
Citrus2011 [14]3 years ago
6 0

3x + 5y = -2

3x + 7y = 26

Subtract first equation from second

2y = 28

y = 14

Plug it in

x = -24

kozerog [31]3 years ago
4 0

Answer:

Step-by-step explanation:

-3 x + 5 y = - 2  ...(1)

3 x + 7 y = 26....(2)

(1)+(2) : 12y =24

y=24/12=2

put this value in (1) or (2) : 3x +7(2) = 26

3x=26-14

3x = 12

x=12/3=4

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Graph y = -2 and x= 3 individually state the slope and x and y intercept form for each
attashe74 [19]

y = -2 and x= 3

Graph is attached below. Black line is the graph of y=-2

Blue line is the graph of x=3

Whenever we get equation like x = something, in that case slope is always undefined

Whenever we get equation like y = something, in that case slope is always 0

y = -2 and x= 3

For x=3, the slope is undefined.

The graph of x=3 is a vertical line at 3 on x. The x intercept is 3 and there is no y intercept.

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3 years ago
Firewood can be sold in cords. the wood is cut into equal lengths and stacked evenly in a rack. which geometric shape can be use
Nadya [2.5K]

To estimate the volume of the chord of wood, since the wood exists cut into equal lengths and stacked evenly in a rack then we can use a cylinder as a model.

<h3>What is a cylinder?</h3>

In mathematics, a cylinder exists as a three-dimensional solid that holds two parallel bases joined by a curved surface, at a fixed distance. These bases exist normally circular (like a circle) and the center of the two bases exists joined by a line segment, which exists named the axis.

A cylinder exists as a closed solid that contains two parallel circular bases joined by a curved surface.

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Chantal cut an apple into a equal slices. She ate 4 slices and had 4 slices left. Which equation models the problem?
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the equation would be x-4=4
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3 years ago
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