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Roman55 [17]
2 years ago
13

Solve the system of equations using the substitution method.

Mathematics
2 answers:
Minchanka [31]2 years ago
4 0

Answer:

y =  - 2 \\ x =  - 2

Step-by-step explanation:

<h3>Question</h3>

- 5x - 3y = 16  \:  \:  =  > 1 \\ y = x =  > 2

Now you can write the 1st equation like this.

- 5x - 3y = 16 \\ x = y \\ so \:  \: you \:  \:  \: can \:  \: write \\  - 5y -  3y = 16  \:  \:  \:  =  > 3

Now simply Solve the 3rd equation

- 5y - 3y = 16 \\  - 8y = 16 \\  \frac{ - 8y}{ - 8}  =  \frac{16}{ - 8}  \\ y =  - 2

<em>Now</em><em> </em><em>replac</em><em>e</em><em> </em><em>y</em><em> </em><em>as</em><em> </em><em>2</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>2</em><em>n</em><em>d</em><em> </em><em>equation</em><em> </em><em>like</em><em> </em><em>this</em>

<em>y = x \\  - 2 =  - 2</em>

<em>Now</em><em> </em><em>let's</em><em> </em><em>check</em><em> </em><em>whether</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>correct</em><em> </em><em>or</em><em> </em><em>wrong</em>

<em>- 5x - 3y = 16 \\   -  5 \times  - 2 - 3  \times  - 2 = 16 \\ 10 + 6 = 16 \\ 16 = 16</em>

<em>Yes</em><em>,</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>correct</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em> </em><em>!</em><em>!</em>

Galina-37 [17]2 years ago
3 0

Answer:

x = y = -2

Step-by-step explanation:

Hope this helps

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<h2>Answer:</h2>

Option: B is the correct answer.

                    B. 36,623 feet

<h2>Step-by-step explanation:</h2>

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We model this problem by taking a right angled triangle such that the side opposite to the 55 degree is of length 30000 feet.

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90 degrees!

I really hope this answer helps you out! It makes my day helping people like you and giving back to the community that has helped me through school! If you could do me a favor, if this helped you and this is the very best answer and you understand that all of my answers are legit and top notch. Please mark as brainliest! Thanks and have a awesome day!

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