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July 28, 2014

July 28, 2014

Posted by **Anonymous** on Wednesday, December 19, 2012 at 1:19pm.

- maths --plse help me.. -
**Damon**, Wednesday, December 19, 2012 at 1:43pm.11 a + .09 b = 5400

but

b = 50,000 - a

so

.11 a + .09 (50,000 -a) = 5400

.11 a + 4500 - .09 a = 5400

.02 a = 900

a = 45,000

then

b = 5,000

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