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3 years ago

3 - 5x = -9 + x solve and show steps

Mathematics

1 answer:

Reptile [31]3 years ago

3 0

Answer:

2 = x

Step-by-step explanation:

1: Add 5x to both sides ( to get rid of 5x, we are adding it because it is negative )

3 - 5x + 5x = -9 + x + 5x

3 = 6x -9

2: Add 9 to both sides ( to get rid of the 9, we are adding it because it is negative )

3 + 9 = 6x - 9 + 9

12 = 6x

3: Divide both sides by 6 to get x by itself

12/6 = 6x/6

2 = x

- Note: the reason why we make changes to both sides is to keep the statement true ( equal ) -

If there are any questions, feel free to comment or message me!

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The producer of the news station posted an article about the high school's football championship ceremony on anew website. The w

sasho [114]

Incomplete question. The full question read;

The producer of the news station posted an article about the high school’s football championship ceremony on a new website. The website had 500 views after four hours. Create a table to show how many views the website would have had after the first, second, and third hours after posting if the website receives views at the same rate. How many views would the website receive after 5 hours?

Answer:

625 views

Step-by-step explanation:

Remember, we are told to base our calculation on the assumption that the website receives views at the same rate.

Hence, if after 4 hours there were 500 views, it means the average views per hour would be 500/4 = 125 views. So for every hour, there would be 125 added views to the total.

In other words,

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Third hour: 375 views (250 views + 125 views)

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3 years ago

Suppose that in a random sample of size 200, standard deviation of the sampling distribution of the sample mean 0.08. researcher

sertanlavr [38]

Answer:

400

Step-by-step explanation:

The computation of the sample size needed is shown below:

Since at the sample size of 200 there is a standard deviation of 0.08

But when the standard deviation is 0.04 so the sample size is 400

As sample standard deviation would be inversely proportional to the square root of the sample size

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3 years ago

I am confused please help

Otrada [13]

Answer:

3 tiles will not fit together.

Step-by-step explanation:

Measure of an Interior angle of a polygon = $\frac{(n-2)\times 180}{n}$

Here, n = number of sides of the polygon

Therefore, measure of the interior angles of a regular hexagon,

A = $\frac{(6-2)\times 180}{6}$

A = 120°

Similarly, interior angle of the regular pentagon,

B = $\frac{(5-2)\times 180}{5}$

B = 108°

Now m∠A + m∠B + m∠C = 360°

m∠C = 360° - (120° + 108°)

= 132°

To fit the given three tiles perfectly, interior angle (∠D) of the third Octagonal tile should be 132°.

D = $\frac{(8-2)\times 180}{8}$

D = 135°

m∠C ≠ m∠D

Therefore, 3 tiles will not fit together.

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Answer:

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