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puteri [66]
3 years ago
12

There are 20 alligators in the swamp. Each year, the number of alligators increases by 25%. There are 25 crocodiles in the swamp

. Each year, 10 new crocodiles join the swamp.
Part B: How many alligators are in the swamp after 4 years? How many crocodiles are in the swamp after the same number of years?
Part C: After approximately how many years is the number of alligators and crocodiles the same? Justify your answer mathematically.
Mathematics
1 answer:
Genrish500 [490]3 years ago
4 0
A)

A=20(1.25^t)

C=25+10t

b)

A(4)=20(1.25^4)≈48.82≈49 alligators to nearest whole alligator

C(4)=25+10(4)=65 crocodiles.

c)

20(1.25^t)=25+10t

1.25^t=1.25+0.5t

t≈7
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