SOLUTION: Sally invested some money at 8% interest. Sally also invested $186 more than 5 times that amount at 9%. How much is invested at each rate if Sally receives $766.16 in inter

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Question 1048601: Sally invested some money at
8% interest. Sally also invested
$186
more than
5 times that amount at
9%.
How much is invested at each rate if Sally receives
$766.16
in interest after one year? (Round to two decimal places if necessary.)
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Let represent the amount invested at 8%. Then the yield for that part of the investment must be . The amount invested at 9% is , and the yield is . The sum of the yields is given as $766.16, so:



Solve for and then calculate

John

My calculator said it, I believe it, that settles it