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tatiyna
3 years ago
12

The measure of the​ angle's supplement is 40​° more than three times that of its complement. find the measure of the angle descr

ibed
Mathematics
1 answer:
Lemur [1.5K]3 years ago
8 0
Angle is x. sup - adds up to 180. comp adds up to 90

180-x = 3(90-x)+40
180-x = 270-3x+40
180-x = 310-3x
180+2x = 310
2x = 130
x=65
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-3x-y=-17 4x + 2 y equals 20
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-3x - y = -17
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multiply one part of the equation so that we can be able to use the process of elimination.

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Now we have:

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Divide -2 on both sides.

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=============================================

To solve for y, we just have to substitute the value of x to any of the equation given above, that we feel comfortable with. And I'm going to choose this equation: 4x + 2y = 20


4x + 2y = 20

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Add 28 on both sides

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---------------------
2y = 48
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y = 24.


The last thing you would do is to check if the answers is correct.
All you have to do is plug in the values of x and y into both equations and see if they equal to one another.

You may have to do this by yourself :P

Anyways, if you have any questions about this topic, feel free to PM me or any other users interested. Thank you for being part of Brainly! Have a nice day!










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