8th gr algebra

joan invested some money in bonds at 6% and \$8000 less that in stocks at 5% .her total intrest is \$1690. how much was invested in stocks?

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1. Let X be the amount invested in bonds
X - 8000 is invested in stocks.
Interest earned (per year) is
1690 = .06X + .05 (X-8000) = 0.11X - 400

Solve for X, then subtract 8000 from that (for stocks).

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posted by drwls
2. Thank you

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posted by angie13

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