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January 25, 2015

January 25, 2015

Posted by **lisa** on Thursday, December 16, 2010 at 3:09pm.

- math -
**bobpursley**, Thursday, December 16, 2010 at 3:19pmLet M be the money he earned.

2/3 M is what he has left after new shirt.

2/3*2/3 M is what he has left after cd.

2/3*2/3*2/3M is what he has left after dvd.

16=(2/3)^4 M

M= 16*(3/2)^4=16*81/16=81

check that.

- math -
**lisa**, Thursday, December 16, 2010 at 3:23pmhow do you get back from 81/1 to 16/1

- math -
**bobpursley**, Thursday, December 16, 2010 at 3:47pm16*81/16... the 16/16 divides to 1, leaving 81

- math -
**nick**, Tuesday, March 15, 2011 at 9:00pmwhat's the final answer??

- math -
**De"Andra**, Wednesday, October 31, 2012 at 4:34pmwell youleft out the one third of the money from the book store

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