Posted by kari on Sunday, September 20, 2009 at 3:49pm.
in a GIVEN DAY THE MILL TURNS OUT THREE TIMES AS MANY UNITS OF PLYWOOD. IT PROFITS OF $25 ON A UNIT OF LUMBER AND $40 ON A UNIT OF PLYWOOD. HOW MANY OF EACH M UST SELL TO MAKE PROFIT OF $14720 can anyone help im so confused

urgent math  Reiny, Sunday, September 20, 2009 at 3:52pm
read your first sentence, it is incomplete and makes no sense.
Please retype your question, and please don't use allcaps.

urgent math  kari, Sunday, September 20, 2009 at 3:58pm
a normal working day the mill makes 3 times as many units of plywood as they do lumber.profit of lumber is $25 profit of plywood is $40 how many of each must be sold to obtain a profit of $14790

urgent math  Reiny, Sunday, September 20, 2009 at 4:11pm
let the number of lumber units be x
then the number of plywood units is 3x
then 25x + 40(3x) = 14790
solve for x

urgent math  kari, Sunday, September 20, 2009 at 4:14pm
so... i just pick any number

urgent math  Reiny, Sunday, September 20, 2009 at 4:24pm
no, you solve the equation
( why would you think to just pick any number ??)
25x + 40(3x) = 14790
25x + 120x = 14790
145x = 14790
divide by 145
x = 102
so they should make 102 units of lumber
and 3(102) or 306 units of plywood.
check 102(25) + 306(40) = 14790
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