maljoh8249
07.10.2019 •
Mathematics
Acollege student earned $7200 during summer vacation working as a waiter in a restaurant on the boardwalk at the beach. the student invested part of the money at 10% and the rest at 9%. if the student received a total of $680 in interest at the end of the year, how much was invested at 10% the amount invested at 10% was
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Ответ:
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.
Ответ:
casting
Explanation: