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pantera1 [17]
2 years ago
15

I will mark you as BRAINLIEST if you give me the correct answer of the questions... Pls asap with all details i am time limited

Computers and Technology
2 answers:
Alex_Xolod [135]2 years ago
6 0

Answer:

11. 1million square decimetres (from online)

20. assuming room is rectangular,

length= (p - 2b)/2

because perimeter= 2 length + 2 breadth for rectangular

Ket [755]2 years ago
5 0

perimeter of room will be

2×(l+b)

hope it helps you

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The advantages of the dynamo
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Nunya is a computer software company that employs highly intelligent, but somewhat unusual people. Every Friday, free lollipops,
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c. Stories

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What is earning potential?
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Earning potential often refers to the top salary for a particular field or profession. In the finance world, the meaning is not much different: earning potential is the biggest profit a company could potentially make.

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A type of touch screen that can be up to four feet by six feet is a(n) _____.
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7 0
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Read 2 more answers
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.

8 0
3 years ago
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