Saturday

April 19, 2014

April 19, 2014

Posted by **Jane** on Saturday, April 21, 2012 at 6:52pm.

I set it up like this: 3x +5 = 250 where x=8l.7. Is this correct so far, if so what do I do next? Thanks

- math -
**Damon**, Saturday, April 21, 2012 at 7:01pmL = 5 + 3 w

L w = 250 so L = 250/w

then

250/w = 3 w + 5

250 = 3 w^2 + 5 w

3 w^2 + 5 w - 250 = 0

(3 w - 25 ) (w + 10 ) = 0

w = -10

or

w = 25/3 use + 25/3

L = 250 *3/25 = 30

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