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Donna took out a loan for 11 months and was charged simple interest at an annual rate of 2.4%.
The total interest she paid on the loan was $143.
How much money did Donna borrow?


Sagot :

143 = x × 0.024 × (11/12)

143 = x × 0.022

143/0.022 = x

6500 = x

Donna borrowed $6500