SOLUTION: Paul and Donna Petrie invested ​$34,000, part at 2% simple interest and the rest 7% at simple interest for a period of 1 year. How much did they invest at each rate if their tota

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Question 1196499: Paul and Donna Petrie invested ​$34,000, part at 2% simple interest and the rest 7% at simple interest for a period of 1 year. How much did they invest at each rate if their total annual interest from both investments was 1380​?
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
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​$34,000, part at 2% simple interest and the rest 7% at simple interest for a period of 1 year. How much did they invest at each rate if their total annual interest from both investments was 1380​?
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This kind done thousands of times.


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... invest ​$P, part at L% simple interest and the rest H% at simple interest for a period of 1 year. How much did they invest at each rate if their total annual interest from both investments was Y​?
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v invested at H%
P-v invested at L%
P = 34000
Y =1380


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----------substitute the given values and evaluate v.

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