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insens350 [35]
2 years ago
14

Can someone please explain to me how to solve this problem? I have the answer already all I need is to know how to solve the pro

blem.

Mathematics
2 answers:
omeli [17]2 years ago
5 0

Answer:

Step-by-step explanation:

you have two supplementary angles,

both added up=180

7y+5y=12y

12y=180y=15

angle DBC=7y=15*7=105

goldenfox [79]2 years ago
3 0

Answer:

Step-by-step explanation:

You know that angle DBA = 180 degrees.

Therefore you can write an equation:

7y+5y=180

12y=180

y=15

Now, you know that y = 15, you can multiply 7 * 15 = 105 degrees

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Step-by-step explanation:

<h2>1)3.25x + -1.5y = 1.25</h2>

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Move all terms containing x to the left, all other terms to the right.

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Combine like terms: -1.5y + 1.5y = 0.0

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3.25x = 1.25 + 1.5y

<h2>2)13x-6y=10</h2>

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Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

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13x + 0 = 10 + 6y

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