math

three sisters run a business. they charge $260 for each job. If the oldest sister earns 50% more than the middle sister and if the youngest sister earns 50% less than the oldest sister, how much does each sister earn per job?
hint: Identify the variable and then write each sister's expression

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  1. if the sisters earn x,y,z then
    z = 3/2 y
    x = 1/2 z
    x+y+z = 260

    (x,y,z) = (60,80,120)

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