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BartSMP [9]
3 years ago
7

For my brother 2x-3+6x=21 X= what

Mathematics
2 answers:
eimsori [14]3 years ago
8 0

Answer:

Step-by-step explanation:

Simplifying

2x-3+6x=21  combine like terms

8x-3=21

Step 2

8x-3=21  Add 3 to the sides

8x=24

Step 3

8x=24  Divide the sides by 8

Your answer would be x=3

AnnZ [28]3 years ago
4 0

Answer:

3

Step-by-step explanation:

mhm for your brother

anyways...

2x-3+6x = 21

Adding like terms

8x -3 = 21

Adding 3 on both sides

8x = 24

Dividing both sides by 8

x = 3

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S_A_V [24]
PLEASE DONT USE THAT LINK
5 0
3 years ago
Consider △BTW as pictured below.<br><br><br> Find m
katovenus [111]

Answer:

m<W: 23

Step-by-step explanation:

8x - 9 + 30x - 4 + 13x - 11 = 180

51x - 24 = 180

51x = 204

x = 4

m<W:

8x - 9

8(4) - 9

32 - 9

23

7 0
3 years ago
A publisher reports that 30% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is
Ierofanga [76]

Answer:

Test statistic = - 2.29

Pvalue = 0.0110

Step-by-step explanation:

The hypothesis :

H0 : p = 0.3

H1 : p < 0.3

Test statistic :

z=pˆ−p/√p(1−p)/n

pˆ = 0.2

Z = (0.20 - 0.30) / √(0.30(1 - 0.30) / 110

Z = - 0.1 / √0.0019090

Z = - 0.1 / 0.0436931

Z = - 2.29

Test statistic = -2.29

The Pvalue :

P(Z < -2.29) = 0.0110

4 0
2 years ago
Divide and simplify. √36 x⁴ / √9 x⁶
Vikki [24]

The divide and simplify of the equation √36 x⁴ / √9 x⁶ will result to  \frac{2}{x^{2} }

Let's begin by simplifying the equation;

Simplify the equation by finding the square root of both 36 and 9

The square root of 36= 6

The square root of 9= 3

= \frac{6x^{4} }{3x^{6} }

The above equation can also be written as;

=  6x^{4}  * 3x^{-6}

The next step is to solve the powers, that is,

=   \frac{6x^{4} }{3x^{6} }

Cancel out 6 by 3 and get  2

The result is,  

=  \frac{2}{x^{6-4} }

The final submission result is,

=  \frac{2}{x^{2} }

To find more on divide and simplify, go to: brainly.com/question/16356152

#SPJ4  

7 0
1 year ago
Number 7: What do the lines on the shape mean
ikadub [295]
I'm pretty sure that they are there to show symmetry
5 0
3 years ago
Read 2 more answers
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