SOLUTION: If y varies directly as​ x, and y=6 when x=5, find y when x=15. y=

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Question 1114089: If y varies directly as​ x, and y=6 when x=5, find y when x=15.
y=
Answer by amalm06(224) About Me  (Show Source):
You can put this solution on YOUR website!
First find the proportionality constant, k:

y=kx

6=k%2A5, so k=6%2F5

When x=15, y=%286%2F5%29%2815%29=18 (Answer)