SOLUTION: Y is inversely proportional to the cube of x. If Y = 5 when x = 2, then k = 20 true or false? once again any help will be loved :)

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Question 640807: Y is inversely proportional to the cube of x. If Y = 5 when x = 2, then k = 20
true or false?
once again any help will be loved :)

Answer by MathTherapy(10551) About Me  (Show Source):
You can put this solution on YOUR website!
Y is inversely proportional to the cube of x. If Y = 5 when x = 2, then k = 20
true or false?
once again any help will be loved :)

y+=+k%2Fx%5E3%29

5+=+20%2F2%5E3 ---- Substituting 5 of y, 20 for k, and 2 for x

5+%3C%3E+2.5, so y+=+k%2F%28x%5E3%29 is highlight_green%28False%29, as k+%3C%3E+20 when y = 5, and x = 2

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