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4 years ago

2x -3 =6 Value of x I don't know help

2 answers:

8 0

Add 3<span> to both sides

</span> $2x=6+3
$

Simplify 6+3 to <span>9

</span> $2x=9$

Divide both sides by <span>2
</span><span>
</span> $x=9/2$ <span>

</span>

OLEGan [10]4 years ago

4 0

You have to add 3 to both sides to get 2x= 9. Then divide 2 by both sides and x would equal 9/2. U can put tht into a decimal if u want though

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7≥ 3x + 4 is it 4, 1, 2 or -1

san4es73 [151]

Answer:

x≤1

Step-by-step explanation:

7≥3x+4

Intercambie los lados para que todos los términos de las variables estén en el lado izquierdo. Esto cambia la dirección de la señal.

3x+4≤7

Resta 4 en los dos lados.

3x≤7−4

Resta 4 de 7 para obtener 3.

3x≤3

Divide los dos lados por 3. Dado que 3 es >0, la dirección de desigualdad sigue siendo la misma.

x≤

Divide 3 entre 3 para obtener 1.

x≤1

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2 years ago

A USA Today/CNN/Gallup survey of 369 working parents found 200 who said they spend too little time with their children because o

KengaRu [80]

Answer: a. 0.542

b. 0.051

c. $(0.491,\ 0.593)$

Step-by-step explanation:

Let p be the population proportion of parents spend too little time with their children because of work commitments

As per given , we have

n= 369

$\hat{p}=\dfrac{200}{369}=0.542005420054\approx0.542$

Since the sample proportion is the best estimate for the population proportion.

So , the point estimate of the proportion of the population of working parents who feel they spend too little time with their children because of work commitments = 0.542

z-value for 95% confidence interval : $z_{\alpha/2}=1.96$

Margin of error : $E=z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$E=(1.96)\sqrt{\dfrac{0.542(1-0.542)}{369}}\\\\=0.0508364564574\approx0.051$

The margin of error = 0.051

Confidence interval : $\hat{p}\pm E$

$0.542\pm0.051\\\\=(0.542-0.051,\ 0.542+0.051)\\\\=(0.491,\ 0.593)$

95% confidence interval estimate of the population proportion of working parents who feel they spend too little time with their children because of work commitments : $(0.491,\ 0.593)$

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4 years ago

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denis23 [38]

Answer:

Part A: 12 plus x, the x being how much money he made on Sunday.

Part B: 2 plus x times 2

Step-by-step explanation:

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3 years ago

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Reptile [31]

Answer:

21.325 is the correct answer

<h3></h3><h3>please gimme brainliest :))!!</h3>

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Mrrafil [7]

Answer:

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