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22-01-2019
Mathematics

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If x varies inversely as y, and x=6 when y=72, find x when y=36

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Respuesta :

22-01-2019

Answer:

12

Step-by-step explanation:

x = k/y Multiply each side by y

k = xy Insert values

= 6 × 72

= 432

x = 432/y Let y = 36

= 432/36

x = 12

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