If a relationship can be written as s=−5+2t, how does s change if t is increasing
2 answers:
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Answer: The amount invested at 10% was $3200.
Step-by-step explanation:
Since we have given that
Principal amount = $7200
Rate of interest are 10% and 9%.
Total interest = $680
Let the amount invested on 10% be 'x'.
Let the amount invested on 9% be '7200-x'.
According to question, we get that
Hence, the amount invested at 10% was $3200.