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notsponge [240]
3 years ago
10

Divide (27x 4 - 18x 3 + 9x 2) ÷ 3x

Mathematics
1 answer:
guajiro [1.7K]3 years ago
7 0
The correct answer is x =24
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Cant solve this please help me <br><br> 9x-2y=8 <br> Y=2x+1
ki77a [65]
Substitute 2x+1 where y is in the equation:

9x-2(2x+1)=8

Then distribute the -2(2x+1)

9x-4x+2=8

Then combine like terms (the x)

5x+2=8

Then do -2 on both side of the equation sign

5x+2=8
- 2 -2

Then you'd get

5x=6

Then divide 5 on both sides

X= 1.2
5 0
3 years ago
Read 2 more answers
Between 20 and 28 students signed up for the chess club. The students could not be divided exactly into groups of 2,3,4 or 5. Ho
Artemon [7]
23

Those are not the answer: 
1) 20 - can be divided by 2
2) 21 - can be divided by 3
3) 22 - can be divided by 2
4) 24 - can be divided by 2 and 4.
5) 25 - can be divided by 5
6) 26 - can be divided by 2
7) 27 - can be divided by 3
8) 28 - can be divided by 2 and 4
8 0
3 years ago
What is the meaning of mathematics ​
Nonamiya [84]

Answer:

mathematics is the study of numbers shapes and patterns

6 0
3 years ago
Find the surface area of the figure. ft
Lapatulllka [165]

Answer:

486

Step-by-step explanation:

Hello!

To find the surface area of a cube we use the equation

S = 6a^{2}

S is the surface area

a is the side length

Put what we know into the equation

S = 6*9^{2}

Solve

S = 6 * 81

S = 486

Hope this Helps!

3 0
3 years ago
Read 2 more answers
Using the slope and the y intercept, graph the line represented by the following equation.
PtichkaEL [24]
Beforehand let me apologize for my sloppy handwriting. I'm a lefty, so please deal with me. . Anyway, the equation you listed didn't really have a x, because a linear equation is y= mx+b, and anything with x is the slope. But I did see y and a number on one side, so I'm like maybe I can get these two alone. So here's what I did:

2y + 4=0
-4 -4 I subtracted 4 on both sides. Why because you would want "y" alone.
Next,
2y= -4
Now to get "y" alone you want to divide on both sides.
2y= -4/ 2
y= -2
Now you're probably thinking "how do you graph it? There's no "x" in the equation." Well, you just graph it. Since the answer is y= -2, you go to the y axis, look for -2, and place a line to indicate that is the equation. And to make it clear, remember y is the y-intercept.

I really do hope this helps you, if not message me. I'll be happy to help, and again I'm sorry for my handwriting!



4 0
3 years ago
Read 2 more answers
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