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October 21, 2014

October 21, 2014

Posted by **mary** on Sunday, December 23, 2007 at 8:55pm.

- algebra -
**drwls**, Sunday, December 23, 2007 at 9:27pmLet x be the number of 37 cent stamps; this means that 20-x will be the number of 20 cent stamps.

0.37 x + (0.20)(20-x)= 7.06 (total dollar value)

0.17 x + 4 = 7.06

0.17 x = 3.06

x = ?

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