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16 June, 15:45

The number of people contacted at each level of a phone tree can be represented by f (x) = 3x, where x represents the level. What is x when f (x) = 27?

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  1. 16 June, 18:03
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    x = 9

    Step-by-step explanation:

    given f (x) = 3x and f (x) = 27, then equating f (x) gives

    3x = 27 (divide both sides by 3)

    x = 9
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