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4 years ago

???? i am confusion ????

Mathematics

2 answers:

Bogdan [553]4 years ago

7 0

Answer:

Step-by-step explanation:

$\dfrac{x}{-12}=-0.4\qquad\text{multiply both sides by (-12)}\\\\-12\!\!\!\!\!\diagup^1\cdot\dfrac{x}{-12\!\!\!\!\!\diagup_1}=(-12)(-0.4)\\\\x=4.8$

guajiro [1.7K]4 years ago

5 0

Answer:

Step-by-step explanation:

Isolate x on one side of the equation.

x/-12=-0.4

x(-12)/-12=(-0.4)(-12) (First, multiply by -12 from both sides.)

(-0.4)(-12) (Solve.)

(-0.4)(-12)=4.8

x=4.8

So, the final answer is x=4.8.

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4 years ago

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andreyandreev [35.5K]

$\huge\text{$m\angle O=\boxed{11^{\circ}}$}$

Since we know that all angles in a triangle add up to $180^{\circ}$ , we can solve for $x$ and substitute it back into $(x-5)^{\circ}$ to find $m\angle O$ .

$\begin{aligned}m\angle N+m\angle O+m\angle P&=180\\(5x-8)+(x-5)+(6x+1)&=180\end{aligned}$

Remove the parentheses and combine like terms.

$\begin{aligned}5x-8+x-5+6x+1&=180\\(5x+x+6x)+(-8-5+1)&=180\\12x-12&=180\end{aligned}$

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Divide both sides of the equation by $12$ .

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3 years ago

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