Seudónimo Seudónimo
  • 13-09-2020
  • Mathematics
contestada

y ∝ 1 √ x If y = 5 when x = 49 find, y when x = 25

Respuesta :

muhammadolim
muhammadolim muhammadolim
  • 13-09-2020

Answer:

y = 1/7

Step-by-step explanation:

  • y ∝ 1/√x  ⇒  y = k/√x
  • y = 5, x = 49  ⇒  5 = k/√49  ⇒  5 = 7k  ⇒  k = 5/7
  • y = 5/(7√x) ⇒  x = 25  ⇒  y = 5/(7√25) = 5/(7·5) = 1/7

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