Answered

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If y is directly proportional to Vx, and y = 25 when x = 3, find x when
y = 100

Sagot :

sqdancefan

9514 1404 393

Answer:

  x = 48

Step-by-step explanation:

It looks like your proportion is ...

  y = k√x

Then k can be found as ...

  k = y/√x = 25/√3

__

For y = 100, the value of x can be found from ...

  100 = (25/√3)√x

  4√3 = √x . . . . . . . . . . multiply by √3/25

  48 = x . . . . . . . . . . . . . square both sides

View image sqdancefan
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