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denis23 [38]
3 years ago
14

X + 9 = 18 + -2x what does x epual

Mathematics
1 answer:
babymother [125]3 years ago
8 0

Answer:

x = 3

Step-by-step explanation:

Step 1: Write out equation

x + 9 = 18 - 2x

Step 2: Add 2x on both sides

x + 2x + 9 = 18 - 2x + 2x

3x + 9 = 18

Step 3: Subtract 9 on both sides

3x + 9 - 9 = 18 - 9

3x = 9

Step 4: Divide both sides by 3

3x/3 = 9/3

x = 3

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Express $3.29 for 24 cans as a unit rate. Round to the nearest cent.
kkurt [141]

Answer:

0.14 cents per can

Step-by-step explanation:

$3.29 divided by 24 cans gives a unit rate or price per can of $0.14 per unit or per can.

Good luck.

Hope this helps!

4 0
3 years ago
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Is 6.003 equal or not equal to 6.03
sweet [91]

Answer:

Not equal.

Step-by-step explanation:

6.003 is smaller than 6.03

7 0
3 years ago
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The career clusters can be defined as
kkurt [141]

Answer:

Career Clusters provide students with a context for studying traditional academics and learning the skills specific to a career, and provide U.S. schools with a structure for organizing or restructuring curriculum offerings and focusing class make-up by a common theme such as interest.

Step-by-step explanation:

4 0
3 years ago
A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds. Find the te
vredina [299]

Answer:

b. 2.333

Step-by-step explanation:

Test if the mean transaction time exceeds 60 seconds.

At the null hypothesis, we test if the mean transaction time is of 60 seconds, that is:

H_0: \mu = 60

At the alternate hypothesis, we test if it exceeds, that is:

H_1: \mu > 60

The test statistic is:

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, s is the standard deviation of the sample and n is the size of the sample.

60 is tested at the null hypothesis:

This means that \mu = 60

A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds.

This means that n = 16, X = 67, s = 12

Value of the test statistic:

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{67 - 60}{\frac{12}{\sqrt{16}}}

t = \frac{7}{3}

t = 2.333

Thus, the correct answer is given by option b.

5 0
3 years ago
Problem 5
hjlf

Answer:

Acute Angled Triangle.

Right-Angled Triangle.

Obtuse Angled Triangle

Step-by-step explanation:

a right angle would be 90° angle

obtuse would be over 90°

acute would be smaller than 90°

hope this helps!

8 0
3 years ago
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