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lapo4ka [179]
3 years ago
5

Solve for x 6(2x + 1) = 18

Mathematics
2 answers:
svetlana [45]3 years ago
4 0

Step-by-step explanation:

Hello there!

Solve for x using the distributive property:

6(2x+1)=18

12x+6=18

12x=12

x=1

:)

never [62]3 years ago
3 0

Answer:

<em><u>x=1      if you can give brainliest that would be great</u></em>

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

6(2x+1)=18

(6)(2x)+(6)(1)=18(Distribute)

12x+6=18

Step 2: Subtract 6 from both sides.

12x+6−6=18−6

12x=12

Step 3: Divide both sides by 12.

12x/12=12/12

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There are 4 lunch choices in a school cafeteria: Salad, Pizza, Spaghetti, and Sub Sandwiches. The percentage of students that ch
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At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 18 m
anyanavicka [17]

Answer:

95% of the customers  have to wait between 10 minutes and 26 minutes

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 18 minutes

Standard Deviation, σ = 4 minute

We are given that the distribution of amount of time is a bell shaped distribution that is a normal distribution.

Empirical Formula:

  • Almost all the data lies within three standard deviation from the mean for a normally distributed data.
  • About 68% of data lies within one standard deviation from the mean.
  • About 95% of data lies within two standard deviations of the mean.
  • About 99.7% of data lies within three standard deviation of the mean.

Now, we can write:

10 = 18-2(4) = \mu - 2(\sigma)\\26 = 18+2(4) = \mu + 2(\sigma)

Thus, by empirical formula, 95% of the data lies within two standard deviations of the mean.

Thus, 95% of the customers  have to wait between 10 minutes and 26 minutes

3 0
3 years ago
Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim.
Art [367]

Answer:

The claim made by the motor company was true. The old sedan, the Libra, would average less than 19 miles per gallon in the city.

Step-by-step explanation:

In this case we need to test the claim made by the Carter Motor Company, that their old sedan, the Libra, would average less than 19 miles per gallon in the city.

The hypothesis to test the claim is as follows:

<em>H₀</em>: The old sedan, the Libra, would average not less than 19 miles per gallon in the city, i.e. <em>μ</em> ≥ 19.

<em>Hₐ</em>: The old sedan, the Libra, would average less than 19 miles per gallon in the city, i.e. <em>μ</em> < 19.

It is provided that the conclusion is to reject the null hypothesis.

This implies that, it was concluded that the old sedan, the Libra, would average less than 19 miles per gallon in the city.

Hence, the claim made by the motor company was true.

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AnnyKZ [126]

C, I'm like 90% sure

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