eeunicemawunyo397
eeunicemawunyo397 eeunicemawunyo397
  • 18-02-2021
  • Mathematics
contestada



If (y + 1) varies directly as square root of x and y =14 when x = 27, find the value of y when
x = 64 without finding the variation constant.​

Respuesta :

tumidaolorunyomi
tumidaolorunyomi tumidaolorunyomi
  • 18-02-2021

Answer:

22.1 or 22

Step-by-step explanation:

Y + 1 varies√x

Y + 1 = K√x ( k is costant)

so we solve for K

given: 14 + 1 = K√27

15 = K√27

divide both sides by √27

15/√27 = K

to find the value of y

y + 1 = 15/√27 (8) : substitute K for 15/√27

Y + 1 = 120/√27

i.e Y = 120/√27 - 1

Y = 23.1 - 1

Y = 22.1 or 22

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