brmoen1392

25.12.2019 • 

Mathematics

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.

Ответ:

rosiegirl313

13.01.2022

Mathematics

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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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Ответ:

mulan5446

27.04.2021

Mathematics

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$1.50 I think not positive

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