SOLUTION: y varies indirectly as twice x. When x = 4, y = 1. Find y when x = 5.

Algebra ->  Equations -> SOLUTION: y varies indirectly as twice x. When x = 4, y = 1. Find y when x = 5.       Log On


   

Question 435228: y varies indirectly as twice x. When x = 4, y = 1. Find y when x = 5.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
y varies indirectly as twice x.
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y = k(2x)
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Solve for "k" using "x = 4 when y = 1".
1 = k(8)
k = 1/8
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Equation:
y = (1/8)(2x) = (1/4)x
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Find y when x = 5.
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y = (1/4)5
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y = 5/4
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Cheers,
Stan H.
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