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brilliants [131]
3 years ago
6

What is the value of x in the equation 3x – 1/9y = 18, when y = 27?1

Mathematics
1 answer:
Andrews [41]3 years ago
8 0
3x-3=18
3x=18+3
3x=21
x=7
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Please help!!! i need this done by tonight!! 50 points!!
Vinil7 [7]

The equation of best fit is y = (-22/5)x + 10.

What is an equation of a line?

The equation of a line is given by:

y = mx + c where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

The following coordinates are given:

Pick two coordinates.

(0, 10) and (25, -100)

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y = mx + c

Now,

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Now,

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Using the coordinates the equation of best fit is y = (-22/5)x + 10.

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5 0
1 year ago
Help me please<br>help me please​
Nikolay [14]

Answer:

1 second

Step-by-step explanation:

s=-5\\u=0\\v=\\a=-10\\t=t

\begin{aligned}\textsf{Using} \quad s & =ut+\dfrac12at^2\\ \implies -5 & =(0)t+\dfrac12(-10)t^2\\ -5 & = -5t^2\\ t^2& = 1\\ t & = \pm\sqrt{1}\\ t & = 1\: \sf s\end{aligned}

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