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Tom invests $10,000 into two accounts, one paying 2% interest per year and the other paying 5% interest per year. He invested 3 times as much in the account paying 5% than in the account paying 2%. how much interest will he ear in one year?
10 years ago

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Steve
if x at 2%, then the rest (10000-x) at 5%. So,

10000-x = 3x

so solve for x, and the interest earned is

.02x + .10(3x) = ?
10 years ago

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