Answer: Divide the first equation, −4x + 8y = 16, by 2
Step-by-step explanation:
If the value depreciates 8.6%, it is 91.4% of what it was the year before. The value can be modeled by
y = 19500(0.914)^x
Total income minus income from plumbing gives us income from rent. Divide that by 12 to give us the monthly income from rent.
61700-4800 = 13700
13700/12 = 1,141.67 a month in rent.
