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August 22, 2014

August 22, 2014

Posted by **andrea** on Monday, August 19, 2013 at 6:31pm.

Kelly 5'6"

- math -
**Steve**, Monday, August 19, 2013 at 6:56pm5'5" = 65"

5'6" = 66"

So, assuming a linear relationship,

66/65 * 140 lb

- math -
**andrea**, Monday, August 19, 2013 at 7:52pmSteve the answer according to my book is 147

- math -
**Steve**, Tuesday, August 20, 2013 at 12:32amWell, I guess that's possible. You have given no other data for determining the line, so I assumed it started at (0,0).

In that case, my answer is 142.15

If, however, the data suggest that the line is given by

w = 4.85 + 66/65 h

then the answer would be 147. Better check the original problem to be sure you have accounted for all the given data.

It's quite possible that the line is given by

w = 36.8 + 66/65 (h-3.7) or something. No idea. All we have to go on is that the slope is probably 66/65. Even that is not certain, since we only have one data point to go on. It's hard to build a variation equation from one point, since it's usually a least-squares fit, using several points to estimate the line.

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