SOLUTION: z is jointly proportional to x3 and y2. If z = 172 when x = 6 and y = 6, find z when x = 4 and y = 3. (Round off your answer to the nearest hundredth.)
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-> SOLUTION: z is jointly proportional to x3 and y2. If z = 172 when x = 6 and y = 6, find z when x = 4 and y = 3. (Round off your answer to the nearest hundredth.)
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Question 1032107: z is jointly proportional to x3 and y2. If z = 172 when x = 6 and y = 6, find z when x = 4 and y = 3. (Round off your answer to the nearest hundredth.) Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! I think you mean
If so, we plug in the original data to find k, then go from there...thus we have...
which gives us
k = .02212
Now we plug this in to the top equation and plug in the new x and y... =
12.74
