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OverLord2011 [107]
2 years ago
15

PLEASE AM BEGGINNN YOUUUUU

Mathematics
1 answer:
Vikentia [17]2 years ago
3 0

Answer:

Step-by-step explanation:

<em>A)</em>

<em>A - the population after its decrease </em>

<em>x - the number of years in which there has been a decrease in population</em>

<em>Hence,</em>

<em></em>\displaystyle\\A=30000-475x\\A+475x=30000-475x+475x\\A+475x=30000\\A+475x-A=30000-A\\475x=30000-A

<em>Divide both parts of the equation by 475:</em>

<em></em>\displaystyle\\x=\frac{30000-A}{475}

<em>B)</em>

<em></em>\displaystyle\\x=\frac{30000-24300}{475} \\\\x=\frac{5700}{475}\\\\x=\frac{12*475}{475}  \\\\x=12\ years

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