Question

(a) If y varies inversely with x3 and y = 310 when x = 2, find...

(a) If y varies inversely with x3 and y = 310 when x = 2, find an equation to represent this relationship.

y =



(b) Find y when x = 3. (Round your answer to two decimal places.)
y =

(c) Find x when y = 38.75.
x =

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Answer #1

hence ### constant of proportionality

when x=2, y=310

Hence the an equation to represent this relationship

b) when x=3

c) when y=38.75

we know that

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