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zhenek [66]
2 years ago
5

WILL GIVE BRAINLIEST!!! PLEASE HELP!!!

Computers and Technology
1 answer:
padilas [110]2 years ago
5 0

Answer:

BOI I got ricked rolled!

Explanation:

He done it!

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Two machines can finish a job in StartFraction 20 Over 9 EndFraction hours. Working​ alone, one machine would take one hour long
Alborosie

<em><u>Answer</u></em>

5 hours

<em><u>Explanation</u></em>

The two working together can finish a job in

\frac{20}{9}  \: hours

Also, working alone, one machine would take one hour longer than the other to complete the same job.

Let the slower machine working alone take x hours. Then the faster machine takes x-1 hours to complete the same task working alone.

Their combined rate in terms of x is

\frac{1}{x}    +  \frac{1}{x - 1}

This should be equal to 20/9 hours.

\frac{1}{x}  +  \frac{1}{x - 1}  =  \frac{9}{20}

Multiply through by;

20x(x - 1) \times \frac{1}{x}  +20x(x - 1) \times   \frac{1}{x - 1}  =  20x(x - 1) \times \frac{9}{0}

20(x - 1)  +20x = 9x(x - 1)

20x - 20+20x = 9{x}^{2}  - 9x

9{x}^{2}  - 9x - 20x - 20x + 20= 0

9{x}^{2}  - 49x  + 20= 0

Factor to get:

(9x - 4)(x - 5) = 0

x =  \frac{4}{9}  \: or \: x = 5

It is not feasible for the slower machine to complete the work alone in 4/9 hours if the two will finish in 20/9 hours.

Therefore the slower finish in 5 hours.

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2 years ago
What sound customization option would you use in Scratch to simulate a sound happening in a large, empty room (like a theater)?
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2 years ago
Membrane-bound organelles are not found in the cells of A) bacteria. B) fungi. C) plants. Eliminate D) protists.
77julia77 [94]
The answer is A. Bacteria leave a thanks if i am correct please.
7 0
3 years ago
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How can i fix this, if i log in my acc it keeps saying wrong nickname or pass. even though my email and pass is correct
Oksanka [162]

Answer:

미안해요. 나는 우리가 단지 부동일 중 하나를 모르지만 그것을 해결하는 방법을 모른다!.

8 0
2 years ago
What is the first and last value of i to be displayed by the following code snippet? int n = 20; for (int i = 0; i &lt;= n; i++)
frutty [35]

Answer:

The first value of i is 0 and last value of i is 20.

Explanation:

The following are the description of a given loop.

  • In this problem, there are two loops one is the internal loop and the other is the external loop
  • In the outer loop, the value of " i" is initialized with "0" So the first value is printed 0 in the console.
  • For one value of "i" all the inner loop is executed.
  • The loop is executed is less equal to 20 that's why the last value of "i" is printed 20 in the console window.

6 0
2 years ago
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