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Vera_Pavlovna [14]
3 years ago
15

The value of x is ___?

Mathematics
1 answer:
Rashid [163]3 years ago
3 0
9x=5x+ (9=x)
(combine like terms)
9x=6x+9
(get the x value alone on one side of the equation, in this case by subtracting 6x from both sides)
3x=9
(divide by 3 on both sides to get x alone)
x=3
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(PLEASE HELP I WILL MARK YOU BRAINLIEST)what’s the standard form of 2.33x10^-8
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Answer:

<h2>0.0000000233</h2>

Step-by-step explanation:

Move the decimal point eight places to the left.

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F(x) = -1/3x find the average rate of change of f from -2 to 2
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Average rate=(change in y)/(change in x)

if f(x)=-x/3

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r=-4/12

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For a line, this is always true, since all lines have a constant velocity, the average velocity over any interval is equal to the slope.

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3 years ago
Solve the inequality a/5 less than 1.
Maslowich

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Step-by-step explanation:

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This is a System Of Equations and I'd like it to get solved by the Elimination or Substitution Method.x+2y=83x+5y=8
Sonbull [250]

Answer:

x=133 y=-25

Step-by-step explanation:

I'll do both ways for you. So let's start with Substitution:

With the sub method, you have to set both equations equal to each other by setting them equal to the same variable. Since there is no coefficient in front of both x's in both equations, that variable will be easiest to solve for.

x + 2y = 83    &    x + 5y = 8

Solve for x.

x = 83 - 2y     &    x = 8 - 5y

Once you have solved for x, set each equation equal to one another and solve for y now.

83 - 2y = 8 - 5y

Isolate all variables to one side:

83 = 8 - 3y

Now subtract the 8 to fully isolate the y variable:

75 = -3y

Divide by -3:

-25 = y   Now that you have your first variable, plug it into one of the original equations and solve for x.

x + 2(-25) = 83

x - 50 = 83

x = 133

Now for the Elimination method. For this method you need to get rid of a variable by either subtracting/adding each equation together. Again, since you can subtract and x from both equations, you will be left with only the y variable to solve:

Put each equation on top of one another and subtract:

  x + 2y = 83

- (x + 5y = 8)

The x's will cancel out:

(x - x) + (2y - 5y) = (83 - 8)

Simplify:

-3y = 75

Solve for y

y = -25

Then, plug y = -25 into one of the original equations:

x + 5(-25) = 8

Solve for x:

x - 125 = 8

x = 133

Hope this helps!

8 0
2 years ago
before a renovation, a movie theater had 149 seats. After the renovation, the theater had 180 seats. what is the approximate per
liberstina [14]

180 - 149 = 31

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