Algebra
posted by KG
Because of a recession, the value of a new house depreciated 10% each year for 3 years in a row. Then, for the next 3 years, the value of the house increased 10% each year. Had the value of the house increased or decreased after 6 years? Explain please!!

Reiny
the original value does not matter
e.g. let's start with 100,000
after 3 years:
value = 100,000(.9)^3
after 3 more years:
value = 100,000(.9)^3 (1.1)^3
= 97,029.9
so what do you think?
Here is a new question for you.
Would it matter if the value first increased by 10% for the first 3 years, and then decreased by 10% for the next 3 years ? 
KG
I am 100% confused on this.
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