SOLUTION: Suppose y varies directly as x and that y=21 when x=3. Find the value of y when x = 5

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Question 287975: Suppose y varies directly as x and that y=21 when x=3. Find the value of y when x = 5
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
No graphs here.
y=kx
21=k*3
k=7
y=7x
y=7*5
y=35