patricia28 patricia28
  • 15-07-2014
  • Mathematics
Answered

If y varies directly with x and x=4 when, y=20, find k, the constant of variation.

Answer :

AL2006
AL2006 AL2006
  • 15-07-2014
Direct variation means [ y = k x ]

Given . . . 20 = k 4

k = 20/4 = 5 .


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