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December 21, 2014

December 21, 2014

Posted by **Breanna** on Monday, August 10, 2009 at 1:12am.

- Algebra Word Problem Help -
**bobpursley**, Monday, August 10, 2009 at 4:08amLEt P be the Price of each cast of wine, and D be the percent duty.

64P*D=5P+40

20P*D=2P-40

multiply the second equation by 3.2

64PD=5P+40

64PD=6.4P-128

subtract the second from the first.

0=-1.4P+168

solve for P

then, go back to the original equation (either) and solve for D

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