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insens350 [35]
3 years ago
13

Photon Lighting Company determines that the supply and demand functions for its most popular lamp are as follows: S(p) = 400 - 4

p + 0.00002p4 and D(p) = 2,800 - 0.0012p3, where p is the price. Determine the price for which the supply equals the demand.
Mathematics
2 answers:
Alinara [238K]3 years ago
8 0
S(p)=D(p)
400-4p+0.00002p4=2,800-0.0012p3
Solve for p
P=96.24
frosja888 [35]3 years ago
8 0

Answer:

<h2>When the price is approximately $92.35, the demand and supply are equal.</h2>

Step-by-step explanation:

The given functions are

S(p)=400-4p+0.00002p^{4}\\ D(p)=2800-0.0012p^{3}

Where S(p) represents the supply, D(p) represents the demand and p the price.

So, to determine the price for which the supply equals the demand, we just need to use the given functions as,

S(p)=D(p)\\400-4p+0.00002p^{4}=2800-0.0012p^{3}

Then, we solve for p

400-4p+0.00002p^{4}=2800-0.0012p^{3}\\400-4p+0.00002p^{4}-2800+0.0012p^{3}=0\\0.00002p^{4}+0.0012p^{3}-2400=0

So, using a calculator, we have

p\approx 92.35\\p\approx -123.58

However, only the positive solution make sense to this problem, because we are looking for the price.

Therefore, when the price is approximately $92.35, the demand and supply are equal.

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