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kolbaska11 [484]
3 years ago
11

The value of x in 6x+7=3x+16

Mathematics
2 answers:
kozerog [31]3 years ago
4 0

Answer:

x=3

Step-by-step explanation:

6x+7=3x+16

Subtract 3x from each side

6x-3x+7=3x-3x+16

3x+7 = 16

Subtract 7 from each side

3x+7-7 = 16-7

3x =9

Divide each side by 3

3x/3 = 9/3

x =3

slavikrds [6]3 years ago
3 0

Step-by-step explanation:

6x + 7 = 3x + 16

First, let's move all of the terms with an x to the left-hand side of the equation, and everything else to the right-hand side of the equation:

6x - 3x = 16 - 7

3x = 9

Now, let's divide both sides by 3 to isolate the x on the left-hand side:

\frac{3x}{3} = \frac{9}{3}

x = 3

Therefore, the value of x in the above equation is 3.

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Select the correct answer. if you roll a single six-sided die, what is the probability of rolling an odd number? a. b. c. d. 3
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Answer:

\frac{1}{2}

Step-by-step explanation:

P(odd number)= \frac{3}{6}

                        =\frac{1}{2}

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2 years ago
Solve for the missing side length, rounded to the nearest tenth.
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Answer: 5.2 mm 7 mm About mm

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6 0
3 years ago
A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95% confid
katrin [286]

Answer:

The 95% confidence interval for the true proportion of all voters in the state who favor approval is (0.4384, 0.5050).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 865, \pi = \frac{408}{865} = 0.4717

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4717 - 1.96\sqrt{\frac{0.4717*0.5283}{865}} = 0.4384

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4717 + 1.96\sqrt{\frac{0.4717*0.5283}{865}} = 0.5050

The 95% confidence interval for the true proportion of all voters in the state who favor approval is (0.4384, 0.5050).

6 0
3 years ago
WILL MARK YOU BRAINLIEST!!!!!!
My name is Ann [436]

Answer:

y = 88

Step-by-step explanation:

Don't worry about the other stuff, just worry about what's in the triangle that has Y.

53°, 39°, and y°

the sum should be equal to 180 so add 53 adn 39 and subtract it from 180.

180 - (53 + 39) = y

180 - 92 = y

88 = y

Hope this helped! Pls Brainliest my answer! It would help amd mean a lot! ;)

6 0
3 years ago
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3 years ago
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