SOLUTION: Monique has $500 to invest. Some of the money is placed in an account that pays 4% interest per year. The remaining money is placed in an account that pays 6% interest per year.

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Question 396092: Monique has $500 to invest. Some of the money is placed in an account that pays 4% interest per year. The remaining money is placed in an account that pays 6% interest per year. If after o e year, she has accumulated a total of 23$ in interest, how much was invested in each of these accounts?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = amount invested @ 4%
Then 500+-+x = amount invested @ 6%
given:
.04x+%2B+.06%2A%28500+-+x%29+=+23
------------------------
.04x+%2B+30+-+.06x+=+23
-.02x+=+-7
x+=+350
500+-+x+=+150
$350 was invested @ 4% and $150 was invested @ 6%