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25-07-2020
Mathematics

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If y varies inversely with x and y=17 when x=11 find y when x=19

Respuesta :

25-07-2020

9.8

y = k*1/x
y = k/x
17 = k/11 => k = 7*11 = 187
y = 187/x

if x = 19 then y = 187/19 ≈ 9.84

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