SOLUTION: Find k if y varies directly with x and y=20 when x=4

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Question 1026074: Find k if y varies directly with x and y=20 when x=4
Answer by sravanik2005(14) About Me  (Show Source):
You can put this solution on YOUR website!
Given y varies directly with x.
So,y=kx
but given y=20 when x=4
that is 20 = k(4)
k= 20/4 = 5
Hence k=5 is the answer