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y varies inversely with x. If y = 40 when x = 16, find x when y = 8.

 Sep 30, 2021
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y = k/x

yx = k    k = proportionality constant

 

(40)(16) = 640=k

 

(8)(x) = 640

x = 640 / 8 = .........

 Sep 30, 2021

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