Answer:
- Interests charged for 4 years: $80
- Total amount to pay back:$480
Step-by-step explanation:
- To know the future value of an specific amount that is borrowed from a bank we use the following equation:
, where FV is future value, PV present value, n the amount of periods and i the interest rate. - In this particular case, the present value of the loan is $400, n=4 (4 years), i=5%. Then the future value equals:
. Then FV= $480, which is the total amount of money she would have to return in 4 years. - The interest paid can be calculated as the total amount paid ($480) minus the inicial loan ($400), which means that total interests paid= FV- PV= $80.
A=24
Find the area by multiplying both diagonals and dividing them by 2. Like so: And you might be wondering how to do that. By using the pythagorean theorem and some simple addition, you could get the answer. One diagonal is 8 and the other is 6....so, 8x6=48....48/2=24
Please let me know if you have any other questions!
Answer:
55 ≤ x ≤100
Step-by-step explanation:
Given the battery life equation: y = -10x +100 where x is hours driving
As we know that the maximum value of y = 100% when x= 0
<=> y ≤100
They are driving from Dallas to San Antonio which is a 4.5-hour drive.
=> x = 4.5 so we substitute x into the equation, we have:
y = -10*4.5 +100
<=> y = -45 + 100 = 55
Hence, the range of this situation is:
55 ≤ x ≤100
Hope it will find you well.
