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8 October, 07:03

A number to the 9th power divided by the same number to the 6th power equals 512. What is the

number?

+5
Answers (1)
  1. 8 October, 07:30
    0
    The answer is 5

    explanation:

    Let's call our number

    a

    . The statement written as a formula is

    a

    12

    a

    9

    =

    125

    We can simplify the fraction, and we have

    a

    3

    =

    125

    To solve for

    a

    , take the third root of both sides:

    a

    =

    (

    125

    )

    1

    3

    =

    5
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