24141048
24141048 24141048
  • 19-11-2020
  • Mathematics
contestada

The value of y varies directly with x. If x = 4, then y = 36. Find the value of x when y = 144.

Respuesta :

kikiboom24 kikiboom24
  • 19-11-2020
the value of x would be 16
Answer Link
mhanifa
mhanifa mhanifa
  • 19-11-2020

Answer:

  • 16

Step-by-step explanation:

Direct variation formula: y = kx

Given

  • x = 4, y = 36

Finding the coefficient k:

  • 36 = 4k
  • k = 36/4
  • k = 9

So the function is

  • y = 9x

Solving for x, when y = 144

  • 144 = 9x
  • x = 144/9
  • x = 16
Answer Link

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