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ElenaW [278]
2 years ago
9

clayton open a savings account 4 years ago. the account earns 8% interest, compounded monthly. if the current balance is $200.00

, how much did he deposit initially?
Mathematics
1 answer:
Marina86 [1]2 years ago
6 0

answer:

$264

work:

8% of 20=16

16(how much is added)×4(years)=64

64(how much is added)+200(how much was already in)=$264

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To check, do 600 - (600 * 0.40) in a calculator. You get 600 - 240 = 360, the discounted cost. 
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Switch sides:

24x^2\pi =Kc

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answer:x=\frac{\sqrt{6}\sqrt{\pi }\sqrt{Kc}}{12\pi },\:x=-\frac{\sqrt{6}\sqrt{\pi }\sqrt{Kc}}{12\pi }

i hope it's help!

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