Why does demand equal marginal revenue for perfectly competitive firms

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Why does demand equal marginal revenue for perfectly competitive firms

the answer is 5636.7

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x : 0 5

y : 5 0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x : 0 2

y : -1 4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.

Specifically, price only equals marginal revenue in perfect competition. Price equals MR in perfect competition because your demand curve is horizontal. No matter how much you produce, it always sells at the same price. In other market structures, you can raise or lower prices.