Answer:
the anwser is 3/2
Step-by-step explanation:
you have to do 2 1/2 times 3 then have to put it in fraction form and it is 3/2
Hope i explained it well its my first time vote me brainleist and tell me if i got it right
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.