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lord [1]
3 years ago
7

8x + 4y = -104 4x + y = -24

Mathematics
2 answers:
boyakko [2]3 years ago
3 0

Step-by-step explanation:

there are different ways you could do it using the elimination and substitution method.

hope this helps you!

-s.

Monica [59]3 years ago
3 0

Answer:

x = 1 and y = -28

(1,-28)

<h2>:- Solution</h2>

Elimination & Substitution method

8x + 4y = -104 →multiply by 1

4x + y = - 24 →multiply by 4

8x + 4y = -104

16x + 4y = -96

____________-

-8x = -8

x = -8/-8

\boxed{x = 1}

Substitute x

4x + y = -24

4(1) + y = -24

4 + y = -24

y = -24 - 4

\boxed{y =  - 28}

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...................................................................
Genrish500 [490]

Answer:

12 cm

Step-by-step explanation:

The Pythagorean Theorem is as follows:

a^{2} +b^{2} =c^{2}

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The hypotenuse equals 13 cm.

Plug these into the equation from above:

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Solve for the other leg:

   a^{2} + 25 = 169                          Square what's in the parentheses from above

a^{2} = 144\\                                  Subtract 25 from 169

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a = 12 cm                        

Thus, the length of the other leg is 12 cm.

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144 + 25 = 169                      Add

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Because both sides are equal it means that 12 cm is the correct answer.

Hope this helps!!

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