Answer : The total amount Mrs. Harrison pay back will be, $654
Step-by-step explanation :
Given:
Principle = $600
Rate = 9 %
Time = 1 years
First we have to determine the simple interest.
Formula used :
![S.I=(PRT)/(100)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/9fz2psz7zsgefqm1d0uuidh82hgy0zdt1t.png)
where,
P = principle
R = interest rate
T = time
S.I = simple interest
Now put all the given values in the above formula, we get:
![S.I=((\$600)* (9)* (1))/(100)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bvzs0zngu7v0eptcijylfmbucsgvmx31ya.png)
![S.I=\$ 54](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7ch7gshexmdaldzsexci47heyxt8lsifqq.png)
The simple interest is, $54
Now we have to determine the total amount Mrs. Harrison will pay back.
Total amount = Principle + Simple interest
Total amount = $600 + $54
Total amount = $654
Thus, the total amount Mrs. Harrison pay back will be, $654