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Nikolay [14]
3 years ago
15

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

Mathematics
1 answer:
vfiekz [6]3 years ago
3 0

<u>Answer:</u>

y = 1/7

<u>Step-by-step explanation:</u>

  • 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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