Answer: 0.89z
Think of it like 100% - 11% = 89%
You save 11%, so you need to pay the remaining 89%
Taking 89% of z then leads to 0.89z
So that's why z - 0.11z = 0.89z
X + 2y = 11
2x + y = 31
x = 11 - 2y
2(11 - 2y) + y = 31
22 - 4y + y = 31
3y = - 9
y = - 3
x = 11 - 2(-3)
x = 11 + 6
x = 17
21
The value of the home after 21 years is 200,000(1.035)^21=411,886.29
Answer:109
Step-by-step explanation:
