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    Change in variables with direct and inverse proportions.

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    X varies directly as the square of s and inversely as t. How does x change when s is doubled? When both s and t are doubled?

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    https://brainmass.com/math/graphs-and-functions/change-in-variables-with-direct-and-inverse-proportions-6765

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    (I have attached a MS Word document solution also.)

    (s^2 is the same as s squared.)

    To say x varies directly as the square of s and inversely as t is to say that x is proportional to s^2/t.

    So x = k s^2/t, where k is some constant (this is ...

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    The change in variables with direct and inverse proportions is examined.

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