SOLUTION: If y varies directly as x, and y = 16 when x = 20. Find y when x = 5.

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Question 58392: If y varies directly as x, and y = 16 when x = 20.
Find y when x = 5.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If y varies directly as x, and y = 16 when x = 20.
Find y when x = 5.
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If y varies directl as x, y=kx; need to find "k".
16=k(20)
k=4/5
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EQUATION:
y=(4/5)x
If x=5 then y=(4/5)(5)=4
Cheers,
Stan H.