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BlackZzzverrR [31]
2 years ago
6

If you take a number, times by 7 then subtract 1. You get the same as if you took the number multiply the number by 5 then subtr

act 8. What is the number?
Mathematics
2 answers:
ruslelena [56]2 years ago
7 0

Step-by-step explanation:

set as no . is X

7X _1 = 5 X - 8

2 X = -7

X = - 7 / 2

Irina-Kira [14]2 years ago
4 0

Answer:

-7/2 or -3.5

Step-by-step explanation:

Make the equation first

7x-1 = 5x-8

7 = -2x

-7/2 = x

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23

Step-by-step explanation:

3a+5

3(6)+5

18+5

23

8 0
2 years ago
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Natalie put 13 cup of flour in a bowl. Her sister put another 34 cup of flour in the bowl. They need a total of 4 cups of flour
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A. 147

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3 years ago
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mojhsa [17]

Answer:

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The average age of online consumers a few years ago was 24.1 years. As older individuals gain confidence with the​ Internet, it
love history [14]

Answer:

The correct option is (C).

Step-by-step explanation:

A null hypothesis is a sort of hypothesis used in statistics that intends that no statistical significance exists in a set of given observations.  

It is a hypothesis of no difference.

It is typically the hypothesis a scientist or experimenter will attempt to refute or discard. It is denoted by H₀.

Whereas the alternative hypothesis is a contradicting statement tot he null hypothesis. It is denoted by Hₐ.

In this case we need to test whether the average age of online consumers has increased or not.

From previous data we know that the average age of online consumers a few years ago was 24.1 years.

A one-sample mean test can be used to determine whether the mean age has increased or not.

The hypothesis for the test can be defined as follows:

<em>H₀</em>: The average age of online consumers is 24.1 years, i.e. <em>μ</em> = 24.1.

<em>Hₐ</em>: The average age of online consumers is more than 24.1 years, i.e. <em>μ</em> > 24.1.

Thus, the correct option is (C).

6 0
3 years ago
Is the length of the hypotenuse of a right triangle with legs that measure 5 cm and 6 cm a rational number or an irrational numb
Brut [27]

Answer:

irrational

Step-by-step explanation:

Use the Pythagorean theorem.

5² + 6² = c²

25 + 36 = c²

c² = 61

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61 is between 7² and 8², so it is not rational.

4 0
2 years ago
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