SOLUTION: helen weller invested $ 11,000 in an account that pays 12% simple interest. How much additional money must be invested in an account that pays 15% simple interest so that the total

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Question 421087: helen weller invested $ 11,000 in an account that pays 12% simple interest. How much additional money must be invested in an account that pays 15% simple interest so that the total interest is equal to the interest on the two investments at the rate of 13%.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
.12%2A11000+%2B+.15x+=+.13%2A%28x+%2B+11000%29+
+1320+%2B+.15x+=+.13x+%2B+1430+
.02x+=+1430+-+1320+
+.02x+=+110+
+x+=+5500+
$5,500 must be invested in an account that pays 15%