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10 March, 04:35

A number to the 9th power divided by the same number to the 6th power equals 343. What is the number?

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  1. 10 March, 04:40
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    Let the number = X

    We have X^9 / X^6 = 343

    When dividing powers, subtract the powers: 9-6 = 3

    So X^9 / X^6 = 343 becomes X^3 = 343

    X = 343^1/3

    X = 7

    The number is 7.
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