P = $3,471.52, the principal
r = 3.1% = 0.031, annual ratr
n = 12, monthly compounding
t = 21 years
Note that n*t = 252.
The value after 21 years is
A = 3471.52*(1 + 0.031/12)²⁵²
= $6,650.91
The interest earned is
6650.91 - 3471.52 = 3179.39
Answer: $3,179.39
( .467, 1.6 )
There is a website called desmos.com and if you put these equations in there it will find the intercepting point of these lines.
Hopefully this helps you!!
Answer:
[-1,3]
Step-by-step explanation:
second law of thermodynamics
δQ) divided by the common temperature (T) at the point where the heat transfer took place.
Q is the heat transfer to or from the system
Cookie sales: 12 weeks divided by 2 weeks = 6 weeks x $360 = $2,160
Car wash: 12 weeks divided by 3 weeks = 4 weeks x $450 = $1,800
Recycling: 12 weeks divided by 4 weeks = 3 weeks x $600 = $1,800
Yard work: 12 weeks divided by 2/5 weeks = 30 x $80 = $2,400
