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4 years ago

11

The solution to the following system of linear equations lies in which quadrant? −2x + 3y = 8 4x + y = −2

1 answer:

sashaice [31]4 years ago

4 0

First, let's find the solution.

-2x + 3y = 8
Add 2x to both sides.
3y = 2x + 8
Divide both sides by 3.
y = 2/3x + 8/3

4x + 2/3x + 8/3 = -2
14/3x + 8/3 = -2
Subtract 8/3 from both sides.
14/3x = -14/3
Multiply both sides by 3/14.
x = -1

y = 2/3(-1) + 8/3
y = -2/3 + 8/3
y = 6/3, or 2.

The solution is (-1, 2) which lies in Quadrant II, because its outline is (-, +).

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3 years ago

Which mathematical sentence most accurately expresses the information in the problem below? Crystal has 121 compact discs that s

ExtremeBDS [4]

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<u>Solution:</u>

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Each of the boxes that she brought home holds 25 discs.

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4 years ago