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babunello [35]
3 years ago
6

3) Jael invests $12 000 at a bank which pays 3% simple interest. After a certain

Mathematics
1 answer:
Ivenika [448]3 years ago
5 0

Answer:

a) $3,240

b) 9 years

Step-by-step explanation:

a) if principal was 12,000 and total amount after interest is 15,240 then interest earned is the difference, which is 3240

b) Interest = Principal x rate x time

let 't' = time, in years

3240 = 12000 x .03 x t

3240 = 360t

3240/360 = t

9 = t

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