SOLUTION: linda invested some money for one year in bonds that pay 8% simple intrest and three times as much in preferred stock that earns 11% simple interest. if the total interest earned f

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Question 1111871: linda invested some money for one year in bonds that pay 8% simple intrest and three times as much in preferred stock that earns 11% simple interest. if the total interest earned from the two investments was $1640, how much was invested in the bonds?
Found 4 solutions by mananth, MathTherapy, josgarithmetic, ikleyn:
Answer by mananth(16946)   (Show Source):
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Amount @ 8.00% x
Amount @ 11.00% 3x

Total interest earned = 1640

8.00% x+ 11.00% *2x= 1640
= 1640
8.00 x+ 22 x = 164000
30.00 x = 164000
x= 5466.66 Amount @ 8.00%

Amount @ 11.00% = 2*5466.66 = 10933.33

Answer by MathTherapy(10552)   (Show Source):
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linda invested some money for one year in bonds that pay 8% simple intrest and three times as much in preferred stock that earns 11% simple interest. if the total interest earned from the two investments was $1640, how much was invested in the bonds?

Correct answer: $4,000 was invested in bonds.

Answer by josgarithmetic(39617)   (Show Source):
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x, amount invested in bonds
3x, amount in prefered stock

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Answer by ikleyn(52782)   (Show Source):
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.
I assume that one of the tutors who answered to this problem is drunk today.

One more "excellent" solution from @mananth ! @greenestamps, hurry up to defend @mananth !