SOLUTION: Using I=PRT. Shawndra has $66,000 to invest. She decides to invest part at 6.5%and the rest at 4.5%. She figured she would make a total of $3,720 on her investments. How much did S
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-> SOLUTION: Using I=PRT. Shawndra has $66,000 to invest. She decides to invest part at 6.5%and the rest at 4.5%. She figured she would make a total of $3,720 on her investments. How much did S
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Question 1080081: Using I=PRT. Shawndra has $66,000 to invest. She decides to invest part at 6.5%and the rest at 4.5%. She figured she would make a total of $3,720 on her investments. How much did Shawndra invest at each rate? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website!
Let the amount invest @ 6.5% =
The amount invested @ 4.5% =
Let the interest earned @ 6.5% =
The interest earned @ 4.5% =
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(1)
(2)
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I'll assume that ( one year )
(1)
(2)
-----------------------------------------
Substitute (1) into (2)
and
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She invested $37,500 @ 6.5%
She invested $28,500 @ 4.5%
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check:
and
OK
Get a 2nd opinion if needed
