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Triss [41]
2 years ago
7

X=3y+10 x=-8y-12 can u guys help me find the steps to solve this equations

Mathematics
1 answer:
Natalija [7]2 years ago
8 0

Answer:

x=4, y=-2

Step-by-step explanation:

x = 3y + 10 \\ x =  - 8y -12\\ now \\ 3y  + 10 =  - 8y - 12 \\ 3y + 8y =  - 12 - 10 \\ 11y =  - 22 \\ y =  \frac{ - 22}{11}  \\ y =  - 2 \\ again \: putting \: the \: value \:of \: y \\ x = 3y + 10 \\ x = 3( - 2) + 10 \\ x =  - 6 + 10 \\ x = 4

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Answer:

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Step-by-step explanation:

4 0
3 years ago
A tree is broken at a height of 5 m from the ground and its top touches the ground at a distance of 12 m from the base of the tr
frozen [14]

Answer:

The original height of the tree is 18 m.

Step-by-step explanation:

Please see attached photo for explanation.

From the diagram, we shall determine the value of 'x'. This can be obtained by using the pythagoras theory as follow:

x² = 5² + 12²

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Finally, we shall determine the original height of the tree. This can be obtained as follow.

From the question given above, the tree was broken from a height of 5 m from the ground which form a right angle triangle with x being the Hypothenus as illustrated in the diagram.

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Therefore, the original height of the tree is 18 m.

3 0
3 years ago
HELP ME!! dont guess
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Answer:

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4 0
4 years ago
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Hello : 
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3 0
4 years ago
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