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July 22, 2014

July 22, 2014

Posted by **Rachel** on Thursday, January 31, 2013 at 8:47pm.

- Math -
**bobpursley**, Thursday, January 31, 2013 at 8:56pmC*6+12*3=(C+12)4.20

- Math -
**bobpursley**, Thursday, January 31, 2013 at 8:57pmC*6+12*3=(C+12)4.20

- Math -
**Reiny**, Thursday, January 31, 2013 at 8:58pmamount of cashews ---- x pounds

amount of peanuts ---- 12-x pounds

6x + 3(12-x) = 4.2(12)

6x + 36 - 3x = 50.4

3x = 14.4

x = 4.8

**need 4.8 pounds of cashews and 7.2 pounds of peanuts**

Proof:

6(4.8) + 3(7.2)

= 50.4

cost per pound = 50.4/12 = 4.2

- correction - Math -
**Reiny**, Thursday, January 31, 2013 at 9:00pmIgnore my solution

Didn't read the question careful enough

go with bobpursley's solution

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