• anonymous
If y varies directly with x, write an equation for the direct variation. Find y when x=15 if y=16 when x=30.
  • Stacey Warren - Expert
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  • katieb
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  • mathmale
As a general rule, "direct variation" is represented by the formula y=kx, where k is called the "constant of proportionality." y = kx You are given y=16 when x=30. Please find the value of k. Now re-write the formula y = kx, using the value of k you've just found. Finally, let x=15 and find y.
  • Pawanyadav
This is complete question ,,that was not complete
  • Vocaloid
still there?

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