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16-02-2018
Mathematics

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Complete the equation of variation where y varies inversely as x. one pair of values is y = 45 when x = 20.

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notagnes notagnes

16-02-2018

inversely proportional means y=k/x, whereas k is constant. hence when y=45,x=20
45=k/20
k=900
ans: y=900/x

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