Algebra-2

Here's the step-by-step solution to find the constant of variation:

Step 1: Write the joint variation equation

When varies jointly as and the cube of , we can express this relationship using the equation , where is the constant of variation that we need to find.

 

Step 2: Substitute the given values into the equation

We are given that , , and . Plugging these values into the equation , we obtain:

 

Step 3: Simplify the right side of the equation

First, calculate

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