A city has a population of 370,000 people. Suppose that each year the population grows by 7%. What will the population be after 15 years? Round answer to the nearest whole number.
\[370,000 (1+r)^t\] r = 7% = .07 t = 15
1020841
I think this is wrong.. :(
no its correct :)
my test told me it was wrong
A certain forest covers an area of 2700km2. Suppose that each year this area decreases by 6.5% What will the area be after 9years? round your answer to the nearest square kilometer.
hmm looks like you just didnt round correctly https://www.wolframalpha.com/input/?i=370000(1.07)%5E15+round+to+nearest+whole+number
ok use same general rule \[2700 (1+r)^t\] since area is decreasing , the rate will be negative r = -6.5% t = 9
-12434489776
area can never be negative
I give up. Thanks anyways.
dont give up, just follow the rule 2700(1-.065)^9
1474.579
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