John invests a total of $20,000, part at 10% and part at 12%. His total for one year is $2160. How much is invested at each rate?

Elementary Algebra
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ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
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Chapter3: Math Models
Section3.2: Solve Percent Applications
Problem 3.39TI: Areli invested a principal of $950 in her bank account with interest rate 3%. How much interest did...
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John invests a total of $20,000, part at 10% and part at 12%. His total for one year is $2160. How much is invested at each rate?

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