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nasty-shy [4]
3 years ago
14

Below are the supply and demand equations for stereo headphones in a certain market. In these equations, p represents price, D r

epresents demand, and S represents supply.
D = - 5/9 p + 94
S = 3p - 160

What is D at the point of equilibrium, to the nearest whole number? a. 151 b. 104 c. 71 d. 54
Mathematics
2 answers:
lana66690 [7]3 years ago
5 0
The Answer is D (54)

Nata [24]3 years ago
5 0

Answer:

Your answer is D (54)

Step-by-step explanation:

Hope this help you

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Step-by-step explanation:

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Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The age of some lecturers are 42,54,50,54,50,42,46,46,48 and 48 calculate the mean age and standard deviation
rjkz [21]

Answer:

Mean age: 48

Standard deviation: 4

Step-by-step explanation:

a) Mean

The formula for Mean = Sum of terms/ Number of terms

Number of terms

= 42 + 54 + 50 + 54 + 50 + 42 + 46 + 46 + 48+ 48/ 10

= 480/10

= 48

The mean age is 48

b) Standard deviation

The formula for Standard deviation =

√(x - Mean)²/n

Where n = number of terms

Standard deviation =

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= √-6² + 6² + 2² + 6² + 2² + -6² + -2² + -2² + 0² + 0²/10

=√36 + 36 + 4 + 36 + 4 + 36 + 4 + 4 + 0 + 0/ 10

=√160/10

= √16

= 4

The standard deviation of the ages is 4

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3 years ago
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Happy studying ^-^</span>
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