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anyanavicka [17]3 years ago

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tekilochka [14]3 years ago

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Step-by-step explanation:

Given,

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Cost of one regular ticket = $8

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Let,

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y represent the number of regular tickets sold

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y = 2x Eqn 2

Putting value of y from Eqn 2 in Eqn 1

$20x+8(2x)=3600\\20x+16x=3600\\36x=3600$

Dividing both sides by 36

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Putting x=100 in Eqn 2

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Total = x+y = 100+200 = 300

There are 300 seats in the theater.

Keywords: linear equation, substitution method

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