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alexus6339
08.04.2021 •
Mathematics
3. Derek deposited $3,000 in a simple interest account 3 years ago. He has earned $360 in interest so far. What is the interest rate (percent) for his account?
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Ответ:
39° is the required answer.
Step-by-step explanation:
BAD = 90°
ADE = 51°
AED = 180° - (BAD + ADE)
→ 180° - (90° + 51°)
→ 180° - 141° = 39°