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Mathematics 24 Online
OpenStudy (anonymous):

$3,000 is invested in an account paying 4% interest and twice that amount is invested at 6%. Which of the following expressions represents the amount of interest earned on the money invested at 6%? 0.06(3,000) 0.06(6,000) 2(3,000)

ganeshie8 (ganeshie8):

3000 is invested in an account, twice the amount wud be 6000 so, 6000 is invested at 6%

ganeshie8 (ganeshie8):

Interest earned on 6000 = ?

OpenStudy (anonymous):

0.06?

ganeshie8 (ganeshie8):

Yes, theats the factor u need to multiply with amount Interest earned on 6000 at 6% = 0.06(6000)

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

If a man earns $420 interest in one year at 7%, what was the amount of money invested?

OpenStudy (anonymous):

Pretty sure $6000. 420 is 70% of $600 and that means that 1% is 60 dollars. So $600 times 10 is 6000.

OpenStudy (anonymous):

right?

ganeshie8 (ganeshie8):

brilliant !! thats very good logic !!!

ganeshie8 (ganeshie8):

420 = 70% 420/70 = 1% 60 = 1% 6000 = 100%

OpenStudy (anonymous):

better said

ganeshie8 (ganeshie8):

:)

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