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March 29, 2017

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Paint Express charges $30 per gallon of paint plus $1.10 per square fooet of wall space. Color Creations charges $24 per gallon of paint and $1.20 per square feet of wall space. Robert estimates he wll need 4 gallons of paint for the room he'dlike to paint. How much wall space would make Paint Express less expensive than Color Creations.

  • Math - ,

    p = 30 * 4 + 1.1 x
    c = 24 * 4 + 1.2 s
    when does p = c ?

    120 + 1.1 x = 96 + 1.2 x
    solve for x

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