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andre [41]
3 years ago
9

2x+3 = 3x-4 what is the value of x?

Mathematics
2 answers:
Tresset [83]3 years ago
8 0

Answer2

7=X

Step-by-step explanation:

2x+3 = 3x-4

-2x        -2x

3= x - 4

+4   +4

7 = x

serious [3.7K]3 years ago
7 0

2x + 3 = 3x - 4

2x - 3x = -4 -3

-x = -7

x = 7

The value of x is 7.

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Think about a population proportion that you may be interested in and propose a confidence interval problem for this parameter.
o-na [289]

Answer: The confidence interval would be (0.2928,0.3672).

Step-by-step explanation:

Since we have given that

Total number of vehicles = 432

Number of SUVs sold = 142

So, it becomes,

\hat{p}=\dfrac{x}{n}=\dfrac{142}{432}=0.33

At 90% confidence interval,

z = 1.645

So, the confidence interval would be

\hat{p}\pm z\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.33\pm 1.645\sqrt{\dfrac{0.33\times 0.67}{432}}\\\\=0.33\pm 0.0372\\\\=(0.33-0.0372,0.33+0.0372)\\\\=(0.2928,0.3672)

Hence, the confidence interval would be (0.2928,0.3672).

8 0
3 years ago
When solving for the system of linear equations by substitution what is the coordinate?
Oliga [24]

Answer:

x=-2, y=-9/2. (-2, -9/2).

Step-by-step explanation:

x=2y+7

3x-2y=3

--------------

3(2y+7)-2y=3

6y+21-2y=3

6y-2y+21=3

4y+21=3

4y=3-21

4y=-18

y=-18/4

simplify

y=-9/2

x=2(-9/2)+7

x=-9+7

x=-2

8 0
3 years ago
In rhombus MOTH, angle HTM=(5x+6) degrees. If angle HMO=(12x-6)degrees, what is angle HMO?
forsale [732]

Answer:

m∠HMO=102°

Step-by-step explanation:

we know that

In a Rhombus the diagonals bisect the angles and opposite angles are equal

In this problem

Angles HMO and HTO are opposite angles

m∠HMO=m∠HTO

m∠HTM=(1/2)m∠HMO ----> because the diagonals bisect the angles and opposite angles are congruent

substitute the values

(5x+6)\°=(1/2)(12x-6)\°

solve for x

10x+12=12x-6\\12x-10x=12+6\\2x=18\\x=9

<em>Find the measure of angle HMO</em>

m∠HMO=(12x-6)°

substitute the value of x

m∠HMO=(12(9)-6)=102°

see the attached figure to better understand the problem

5 0
4 years ago
What does a negative slope look like in an equation?
GarryVolchara [31]

Answer:

The coefficient would be negative.

Step-by-step explanation:

7 0
3 years ago
The two dot plots represent a sample of the number of people in households in two towns. Which statements are true about the dat
marta [7]

Answer:

both have the same amount of dots I know that.

Step-by-step explanation:

also, I love the profile picture:)

5 0
3 years ago
Read 2 more answers
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