Answer:
- Compound Interest ⇒ FV = PV x (1 + I ) ^N
- Simple Interest ⇒ FV = PV x I x N
Explanation:
With compound interest the rate of growth needs to be compounded which is why the time period is used to exponentially adjust it.
With simple interest there is no compounding so the value is simply the interest that will be earned every period (which is a constant value) multiplied by the number of periods and the amount to be invested.
In this item, we let the number of tickets sold to the adults as x. With this, we can let the number of tickets sold to students with y.
In this item, we are given that the sum of the number of students and adults is equal to 600. Further, we are also given that the difference is 150. The system of linear equation that would allow us to solve this item is,
x + y = 600
x - y = 150
Adding up the two equations will give us,
2x = 750
Dividing by 2,
x = 375
Substituting this value to the first equation,
375 + y = 600
y = 225
Therefore, there are 375 and 225 number of tickets sold to adults and students, respectively.
Answer:
time take = 13 months
so correct option is C.)13
Explanation:
given data
closing costs = $1,400
monthly payment reduce = $980 to $870
to find out
Time to cover cost
solution
we know here monthly payments after reduction will be
monthly payments = $980 - $870
monthly payments = $110
so
time taken is = 
.........1
time taken is = 
time take is = 12.727273
time take = 13 months
so correct option is C.)13
