An executive invests $21,000, some at 8% and the rest 6% annual interest. If he receives an annual return of $1,620, how much is invested at each rate?
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at 6% interest $[ ] ​


An Executive Invests 21000 Some At 8 And The Rest 6 Annual Interest If He Receives An Annual Return Of 1620 How Much Is Invested At Each Rate At 8 Interest At 6 class=