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17-11-2017
Mathematics

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if G varies inversely as r, and G = 18 when r= 4, find G when r= 6

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altavistard altavistard

17-11-2017

The model to use here is y = k/x.

If g =18 when r = 4, then 18 = k/4. Solving for k, k = 72.

Then g = 72/r. If r = 6, g = 72/6 = 12 (answer)

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