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21-12-2020
Mathematics

contestada

Maria earned $126 in simple interest from her savings account. If she invested $450 for 7 years, what was the interest rate?
4%

4.5%

3.5%

5%

Respuesta :

clarch19 clarch19

28-12-2020

Answer:

answer is 4%

Step-by-step explanation:

use formula Interest = Principal x Rate x Time

126 = 450 · 7 · r

126 = 3150 r

r = .04

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