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April 16, 2014

April 16, 2014

Posted by **XOCHIL** on Friday, March 30, 2012 at 11:08pm.

- word problem -
**Reiny**, Saturday, March 31, 2012 at 8:05amsecond part --- x

first part ---- 3x

third part --- (93000 - x - 3x) = 93000 - 4x

.08(3x) + .06x + .09(93000-4x) = 7110

.24x + .06x + 8370 - .36x = 7110

-.06x = -1260

x = -1260/-.06 = 21000

**second investment = x = $21000**

first investment = 3x = $63000

third investment = 93000-4x = $9000

check:

63000(.08) + 21000(.06) + 9000(.09) = 7110

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