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Mathematics 17 Online
OpenStudy (anonymous):

Zach borrowed $4,000 from his grandfather to buy a used car so he could travel to and from work. After working for 3 years, he has saved $5,920 to pay back to his grandfather. At what interest rate did Zach borrow the money?

OpenStudy (anonymous):

i think it is 16%

OpenStudy (anonymous):

4000 * .16 = 640 640 * 3 = 1920 1920 + 4000 = 5920

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