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Shirley Invested A Total Of 12000 In Two Certificates Of Deposit One Pays 6 Percent Interest Ant The Other Pays 7 Percent Interest Her Total Interest At The End Of One Year Is 790 How Much Is Invested?

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Karl Sagan Profile
Karl Sagan answered

Talking about investments, I can tell that, for a long time, I couldn't decide what to invest my money in. I had several options like real estate, cryptocurrency, etc. And my friend told me that he successfully did his first trade. I thought that it was a sign, and opened BitQS system - the same website my friend used. I did my first investment there, and it's my favorite platform to this day.

Oddman Profile
Oddman answered
Suppose x is the amount invested at 7%. The amount of interest earned totals $790.
  X*7% + ($12,000 - x)*6% = $790
  x*(7% - 6%) + $12,000*6% = $790
  x*1% = $790 - $12,000*6%
  x = $(790 - 720)/1%
  x = $70/.01
  x = $7000
Shirley invested $7000 at 7% and $5000 at 6%.

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