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How much is the bill for a person who uses 800 kWh in a month ?

How much is the bill for a person who uses 800 kWh in a month ? class=

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MercieM594499 MercieM594499

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For a person who uses 800kwh. x = 800 , Since x is greater than 200 we will use

[tex]\begin{gathered} 0.15(x-200)+20 \\ 0.15x-30+20 \\ 0.15(800)-10 \\ 120-10=110 \end{gathered}[/tex]

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