SUSAN MARCIANO INVESTED PART OF HER $11,000 BONUS IN A FUND THAT PAID 12% PROFIT AND INVESTED THE REST IN?

stock which suffered the 4% loss. Find the volume of any investment if her altogether net distinction was $680?

{ 1 comment }

snow yak July 19, 2011 at 11:59 am

x + y = $11000
y = $11000 – x [1]

0.12x – 0.04y = $680 [2]

Substitute [1] into [2] and solve for x:
0.12x – 0.04($11000 – x) = $680
0.12x – $440 + 0.04x = $680
0.16x = $1120
x = $7000

y = $11000 – $7000
y = $4000

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