Answer:
The principal amount was $23,393.45
Step-by-step explanation:
The total amount paid on a 35 year loan was $98,000 at the rate of interest 4.1%
We will calculate Principal amount by this formula
![A=P(1+\frac{r}{n})^{nt}](https://tex.z-dn.net/?f=A%3DP%281%2B%5Cfrac%7Br%7D%7Bn%7D%29%5E%7Bnt%7D)
Where A = amount (98,000)
P = Principal amount (P)
r = rate of interest 4.1% (0.041)
n = number of compounding interest monthly (12)
t = time (35 years)
![98,000=P(1+\frac{0.041}{12})^{(12)(35)}](https://tex.z-dn.net/?f=98%2C000%3DP%281%2B%5Cfrac%7B0.041%7D%7B12%7D%29%5E%7B%2812%29%2835%29%7D)
![98,000=P(1+0.003416)^{(420)}](https://tex.z-dn.net/?f=98%2C000%3DP%281%2B0.003416%29%5E%7B%28420%29%7D)
![98,000=P(1.003416)^{(420)}](https://tex.z-dn.net/?f=98%2C000%3DP%281.003416%29%5E%7B%28420%29%7D)
98,000 = P(4.189386)
= 4.189386P = 98,000
P = ![\frac{98000}{4.189386}](https://tex.z-dn.net/?f=%5Cfrac%7B98000%7D%7B4.189386%7D)
P = 23,392.4494 ≈ $23,392.45
The principal amount was $23,393.45
Answer:
66.69
Step-by-step explanation:
You start off with -3.9 x -5.7 which gives you a positive, and that positive is 22.23, then you multiply that number by 3, and you get 66.69.
It would be 7.54 because you fist have to put the numbers ordered smallest to biggest amount 7.15, 7.44, 7.48,7.60, 7.72, 7.73 so the numbers that are in the middle are 7.48 and 7.60 you add them up, and the result you divide by 2 which gives you 7.54.
Hi
7 = 14.70
15= X
so : X = 15*14.70 /7 = 31.5
15 liters of petrol cost 31.5