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July 30, 2014

July 30, 2014

Posted by **Johnnie** on Tuesday, June 30, 2009 at 4:26am.

- Algebra -
**Marth**, Tuesday, June 30, 2009 at 8:58amlet x be the number of units of lumber.

let 3x be the number of units of plywood (because it turns three times as many units of plywood as lumber)

Multiply the variables by the profits and set it equal to the total profit

3x*40+x*25=15080

120x+25x=15080

145x=15080

x=104

To find how much of each unit:

104 lumber (because x is the number of lumber)

3*104 plywood (because 3x is the number of plywood) = 312

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