SOLUTION: If y varies directly as x and x=10 when y=4, find y when x=5.

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Question 1174003: If y varies directly as x and x=10 when y=4, find y when x=5.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

If y varies directly as x and x=10 when y=4, find y when x=5.

  y = kx

  4 = k10

      k = .4

  y = .4(5) = 2  (Notice as x gets smaller, y gets smaller)

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