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alina1380 [7]
3 years ago
15

The price-demand equation for hamburgers at a fast food restaurant is given by the equation below. Currently the price of a hamb

urger is $4.50. If the price is
increased by 20% how will the revenue be affected?
x+500p = 3500
If the price is increased by 20%, the revenue will
Click to select your answer(s)
Mathematics
1 answer:
Hitman42 [59]3 years ago
6 0
<h3>Answer: Revenue decreases by 23.2%</h3>

==========================================

Work Shown:

x = demand

p = price

Solve for the demand x when the price is p = 4.50 dollars.

x+500p = 3500

x+500(4.50) = 3500

x+2250 = 3500

x = 3500-2250

x = 1250

If the price is $4.50, then the demand is 1250 (ie 1250 people will want a hamburger)

-------------

Compute the revenue

Revenue = (price per item)*(number of items sold)

Revenue = p*x

Revenue = (4.50)*(1250)

Revenue = 5625

If the price per burger is $4.50, then the revenue is $5,625.

-------------

Let's increase the price by 20%. To do this, multiply by 1.20

1.20*4.50 = 5.40

The price of the burger is now $5.40

Let's see what x will become after we plug in p = 5.40

x+500p = 3500

x+500(5.40) = 3500

x+2700 = 3500

x = 3500-2700

x = 800

The demand has dropped to 800

-------------

Next compute the new revenue

Revenue = (price per item)*(number of items sold)

Revenue = p*x

Revenue = (5.40)*(800)

Revenue = 4320

The revenue is now $4,320

-------------

Lastly, find the percent change from the old revenue ($5,625) to the new revenue ($4,320)

A = old value = 5625

B = new value = 4320

C = percent change from A to B

C = 100*(B-A)/A

C = 100*(4320-5625)/5625

C = 100*(-1305/5625)

C = 100*(-0.232)

C = -23.2%

The negative C value indicates a percent decrease.

<h3>Revenue has decreased by 23.2%</h3>
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