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3 years ago

15x+8=6x+2 Find X please I beg you I have to feed my kids

Mathematics

2 answers:

RoseWind [281]3 years ago

7 0

Answer: x = -2/3

Step-by-step explanation:

1. Isolate the x on one side of the equation by subtracting 6x from each side

9x + 8 =2

2. Subtract 8 from each side to get the x on one side of the equation and the whole numbers on the other side.

9x = -6

3. Divide each side by 9 to find the value of x

x = -2/3

Rzqust [24]3 years ago

4 0

Answer:

$15x+8=6x+2\\9x+8=2\\9x=-6\\x=-6/9 or -2/3\\Hope this helps plz hit the crown :D$

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A tunnel is 300 feet deep and makes an angle of 30 with the ground .

Goshia [24]

Answer:

$\boxed{C.\:\: 600\:feet}$

Step-by-step explanation:

The tunnel, the ground and the depth of the tunnel form a right angle triangle.

The length of the tunnel is the hypotenuse of the right triangle that has been formed.

Let the length of the tunnel be $m\: feet$ .

Using the sine ratio, we obtain;

$\sin(30\degree)=\frac{Opposite}{Hypotenuse}$

The length of the opposite side is $300\:feet$

We substitute the given values to obtain;

$\sin(30\degree)=\frac{300}{m}$

$\Rightarrow \frac{1}{2}=\frac{300}{m}$

We cross multiply to obtain;

$m=300\times2$

$m=600\:feet$

Therefore the correct answer is C.

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Answer:

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