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3 years ago

25=-8x+9(x+3) Please Answer.

Mathematics

2 answers:

KonstantinChe [14]3 years ago

7 0

25=-8x+9(x+3)
25=-8x+9x+27
25=x+27
x=2

kirill [66]3 years ago

5 0

X = -2

This is the answer. :)

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3 years ago

Using the standard 28/36 guidelines, what is the maximum mortgage payment allowed for someone with an annual salary of $82,175?

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2 years ago

The table shows the relationship between the number of calories Tai burns while biking and the number of minutes he bikes.

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Answer:

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Step-by-step explanation:

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4 years ago

HELP ASAP!!!20pts<br><br> 1/3x=−20<br><br> WHAT IS X?

zmey [24]

Answer:

x = -60

Step-by-step explanation:

1/3x=−20

X is 1/3

X times 3 = a full X

Fill it in

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7 0

3 years ago

Read 2 more answers

Sales at a fast-food restaurant average $6,000 per day. The restaurant decided to introduce an advertising campaign to increase

Akimi4 [234]

Answer:

The value of the test statistic is 2.8.

Step-by-step explanation:

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value expected value for the population mean, $\sigma$ is the standard deviation and n is the size of the sample.

Sales at a fast-food restaurant average $6,000 per day

This means that $\mu = 6000$

Sample of 49

This means that $n = 49$

The sample showed average daily sales of $6,400.

This means that $X = 6400$

Population standard deviation is about $1,000.

This means that $\sigma = 1000$

The value of the test statistic is

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{6400 - 6000}{\frac{1000}{\sqrt{49}}}$

$z = 2.8$

The value of the test statistic is 2.8.

7 0

3 years ago