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14. In Planning Her Retirement, Liza Deposits Some Money at 3% Interest, with Twice as Much Doposited It B. He Find the Amount

Question

14. In planning her retirement, Liza deposits some money at 3% Interest, with twice as much doposited it B. he Find the amount deposited at oach rato if the total annual Interest income is 1300. She deposited square at at 3% and square at 5%. 3% and at 5%

Solution

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4 (238 Votos)
Otávio Profissional · Tutor por 6 anos

Resposta

Let's denote the amount deposited at 3% as and the amount deposited at 5% as .The total annual interest income from both deposits is The interest earned from the 3% deposit is , and the interest earned from the 5% deposit is \( 0.05(2x) \). So the equation becomes: Combine like terms: : 10,000 at 3% and $20,000 at 5%.