SOLUTION: Assume that y varies inversely as x. If y = 8 when x = 2.5, find x when y = 2.

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Question 160078: Assume that y varies inversely as x. If y = 8 when x = 2.5, find x when y = 2.
Answer by Alan3354(69443) About Me  (Show Source):
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Assume that y varies inversely as x. If y = 8 when x = 2.5, find x when y = 2.
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y = k/x (k is some constant)
k = xy
k = 8*2.5 = 20
At y = 2:
2 = 20/x
2x = 20
x = 10