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lidiya [134]
3 years ago
7

The price p (in dollars) and the quantity x sold of a certain product obey the demand equation:

Mathematics
2 answers:
katen-ka-za [31]3 years ago
6 0
X = -20p + 500
20p = 500 - x
p = (500 - x)/20

R = xp = x(500 - x)/20 = (500x - x^2)/20
Nina [5.8K]3 years ago
4 0
X = - 20 p + 500
First we have to express p as a function of x:
20 p = - x + 500  / : 20
p = - x/20 + 25
The revenue:
R = x p
R = x ( - x/20 + 25 ) = - x²/20 + 25 x
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dezoksy [38]

Answer: it will take 5 people 6.4 hours to do the work.

Step-by-step explanation:

The number of hours required to do a job varies inversely as the number of people working. Let h represent the number of hours required to do the job. Let p represent the number of people working. Therefore,

h is inversely proportional to p

Introducing a constant of variation, k, it means that

h = k/p

It takes 8 hours for 4 people to paint the inside of a house. Therefore

8 = k/4

k = 8×4 = 32

The formula becomes

h = 32/p

To determine how many hours it will take 5 people to do the work, we will substitute p = 5 into the formula. It becomes

h = 32/5 = 6.4 hours

7 0
3 years ago
How Do You Write .0676767 In Scientific Notation?
evablogger [386]
<span>6.8 x 10^-2

The scientific notation of 70, 030, 000. To find the scientific notation of this value </span><span><span>
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3.  </span>It becomes 7.003</span>
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3 years ago
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Bond [772]

The Answer Is B

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Meaning B is correct.

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2 years ago
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Citrus2011 [14]

Answer:

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Step-by-step explanation:

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It goes right because if it went left it would be p < -3.

6 0
3 years ago
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