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The cost that a carpet cleaning company charges is directly proportional to the number of rooms cleaned. The cost is $22 for each room.

AWrite a direct variation equation to represent the cost.
BHow many rooms can a hotel pay the company to clean for $200? Write and solve an equation.
CSuppose the hotel plans to tip the carpet cleaners $40, how many rooms can the hotel get cleaned for $200 now? Write and solve an equation.

Verified Answer :

I want to say it's A? Write a direct variation equation to represent the cost?...

[EDIT]: I am sorry, I thought those were answer choices! Apologies! :)

HollyJean
Ay=22x
(b) 200=22x
      9.09=x   (round down to whole number)
      9=x
(c) 200=22x+40
      160=22x
      7.27=x     (round down)
      7=x

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