24-06-2017
Mathematics

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Assume that y varies inversely with x. If y=8 when x=1.55. Find x when y=-0.62

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RickyChen RickyChen

24-06-2017

since xy = a (a is a constant)
a = 8*1.55 = 12.4

so -0.62x = 12.4
-> x= 20

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