Answer:
Step-by-step explanation:
If you write 1 instead of y, x would be 5/8 so ratio is 1/5:8=8/5
Add 165 to 245. That is a total of 410kWh.
245kWh is more than 50% of 410kWh.
So, according to the plan, you will pay NightTimer rate for kWh at night and DayTimer rate during the day.
The work done:

The raw, accurate, answer is that the value to pay is $22.08085.
In real terms, it is closer to your $22.08 option. That is the one I'd take.
ANSWER:
50.88
STEP BY STEP
First you would do 64 x .25 which is 16
Then you would take the 16 away from 64 so it would be 48
Then you have to add the tax so it would 48 x .06 = 2.88
Finally you would add the 2.88 to 48 which is 50 .88
Find the inverse, interchange the variables to solve for y
f-1 (x)=-
![\frac{8- \sqrt[]{_2(-8+x)} }{2} ,](https://tex.z-dn.net/?f=%20%5Cfrac%7B8-%20%5Csqrt%5B%5D%7B_2%28-8%2Bx%29%7D%20%7D%7B2%7D%20%2C)
Answer:
$25 821.69
Step-by-step explanation:
The formula for the future value (FV) of an investment is
FV =PV(1 + r/n)^nt
FV = 20 000(1 + 0.087/2)^(2×3)
FV = 20 000(1 + 0.0435)⁶
FV = 20 000(1.0435)⁶
FV = 20 000 × 1.291 0847
FV = $25 821.69