Posted by **Joe** on Monday, November 21, 2011 at 9:41pm.

If y varies jointly as w and x, and y is 483 when x is 742 and w is 383, find y when x is 274 and w is 756.

- Algebra II -
**Steve**, Tuesday, November 22, 2011 at 10:39am
y = kwx

First, find k. Do this by plugging in x,w,y:

483 = k*742*383 so

k = 0.0016995

Now, knowing k, find y:

y = 0.0016995 * 274 * 756

y = 352

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